Re: send_reply not accepting values

Found the issue!
for future reference, after every evapi_{async}_relay() call, there should
be an exit().
In the route[NOTIFY_CALL_REJECT] block, after the evapi_async_relay call,
I added an exit(); and it worked ! Solved both issues I was getting!


Atenciosamente / Kind Regards / Cordialement / Un saludo,


*Sérgio Charrua*




On Thu, Sep 11, 2025 at 1:00 PM Sergio Charrua <[email protected]>
wrote:

> Hi Henning,
>
> Below is part of the Kamailio script that i'm developing. I've run with
> debug level 3, but there is nothing helpful found on log.
> There are 2 issues which i cannot get a solution, so far:
> 1 - after a 1st call to EVAPI script where the list of routes are returned
> (RTJson object), the transaction continues fine. When the INVITE cannot be
> relayed to the egress endpoint (because it is off-line) there is the
> obvious 408 Session Timeout error, the route[NOTIFY_CALL_REJECT] is
> executed calling EVAPI script and when event_route[evapi:message-received]
> is executed apparently the t_continue() fails because there is no
> transaction available! I have tested multiple ways, with t_new_trans +
> evapi_relay(), just evapi_realy() or evapi_async_relay but in the
> NOTIFY_CALL_REJECT block, but always get the same error
>
> 2 - that nasty 503 - Service Unavailable error which, IMHO, doesn't make
> sense.
>
> Greatly appreciate the help.
>
>
> These are parts of the logs that are generated, with debug level 3:
>
> Sep 11 12:52:00 ire-lab-kamailio1 kamailio[567385]: INFO:
> {1757587920.971352 567385 1 102 INVITE
> [email protected]:5060} <script>: EVAPIRESPONSE
> - Resumed with JSON: {"action": "ROUTE", "call_id": "my_call_id",
> "error_code": 0, "error_text": "", "retry_on_failure": "0", "rtjson":
> {"routes": [{"branch_flags": 8, "default_timeout": 10, "dst_uri": "sip:
> 10.20.0.6:5060", "headers": {"extra": "X-Hdr-A: abc\r\n", "from":
> {"display": "Alice", "uri": "sip:[email protected]@10.20.0.5"},
> "to": {"display": "Bob", "uri": "sip:[email protected]"}}, "route_id":
> "123", "socket": "udp:10.20.0.4:5060", "uri":
> "sip:[email protected]@10.20.0.5"}, {"branch_flags": 8,
> "default_timeout": 10, "dst_uri": "sip:10.20.0.7:5060", "headers":
> {"extra": "P-Asserted-Identity: sip:+12122478000;verstat=
> [email protected]:5060\r\nIdentity:
> eyJhbGciOiJFUzI1NiIsInBwdCI6InNoYWtlbiIsInR5cCI6InBhc3Nwb3J0IiwieDV1IjoiaHR0cHM6Ly9wcm9kMDAxLXByb2QwMTEtY3IucmJibmlkaHViLmNvbS9DbWJ5aVlISWd6L3Rlc3RucHJvZHB1YmxpYyJ9.eyJhdHRlc3QiOiJDIiwiZGVzdCI6eyJ0biI6WyIxMjAyMzI0MzAwMCJdfSwiaWF0IjoxNzEwMzk1NjAwLCJvcmlnIjp7InRuIjoiMTIxMjM0NzgwMzQifSwib3JpZ2lkIjoiYmFkYTM4OWYtOWM3MS00NWE2LThlNzgtODRjNDgwZjJlNjk5In0.xCMtauutY5K1kyS5htnXohjRSYluEFs_YIjURmTxhzifGaLDfF5pYgL_vt6jIiwvghBbL3V0Cw2UcPb-YMl8Tg;info=<
> https://prod001-prod011-cr.rbbnidhub.com/CmbyiYHIgz/testnprodpublic>;alg=ES256;ppt=shaken\r\n",
> "from": {"display": "Mary", "uri": "sip:[email protected]@
> 10.20.0.5"}, "to": {"display": "Dave", "uri": "sip:[email protected]"}},
> "path": "", "route_id": "456", "socket": "udp:10.20.0.4:5060", "uri":
> ""}], "routing": "serial", "success": "True", "version": "1.0"}}
> Sep 11 12:52:00 ire-lab-kamailio1 kamailio[567385]: INFO:
> {1757587920.971782 567385 1 102 INVITE
> [email protected]:5060} <script>: EVAPIRESPONSE
> - retry_on_failure = 0
> Sep 11 12:52:00 ire-lab-kamailio1 kamailio[567385]: INFO:
> {1757587920.971860 567385 1 102 INVITE
> [email protected]:5060} <script>: RTJSON_PROCESS
> - Initializing RTJSON routes
> Sep 11 12:52:00 ire-lab-kamailio1 kamailio[567385]: INFO:
> {1757587920.972103 567385 1 102 INVITE
> [email protected]:5060} <script>: RELAY -
> Modifying SIP headers from INVITE
> Sep 11 12:52:00 ire-lab-kamailio1 kamailio[567385]: ERROR:
> {1757587920.972120 567385 1 102 INVITE
> [email protected]:5060} app_jsdt
> [app_jsdt_mod.c:332]: w_app_jsdt_run(): p1 too long 1319
> Sep 11 12:52:00 ire-lab-kamailio1 kamailio[567385]: ERROR:
> {1757587920.972210 567385 1 102 INVITE
> [email protected]:5060} pv [pv_core.c:261]:
> pv_get_ruri(): failed to parse the R-URI
> Sep 11 12:52:00 ire-lab-kamailio1 kamailio[567385]: INFO:
> {1757587920.972651 567385 1 102 INVITE
> [email protected]:5060} <script>: MANAGE_BRANCH
> - {"routes":[{"branch_flags":8,"default_timeout":10,"dst_uri":"sip:
> 10.20.0.6:5060","headers":{"extra":"X-Hdr-A:
> abc\r\n","from":{"display":"Alice","uri"
> Sep 11 12:52:00 ire-lab-kamailio1 kamailio[567385]: INFO:
> {1757587920.972697 567385 1 102 INVITE
> [email protected]:5060} <script>: MANAGE_BRANCH
> - using new route index 0
> Sep 11 12:52:00 ire-lab-kamailio1 kamailio[567385]: ERROR:
> {1757587920.972835 567385 1 102 INVITE
> [email protected]:5060} pv [pv_core.c:261]:
> pv_get_ruri(): failed to parse the R-URI
> Sep 11 12:52:00 ire-lab-kamailio1 kamailio[567385]: INFO:
> {1757587920.972835 567385 1 102 INVITE
> [email protected]:5060} <script>: MANAGE_BRANCH
> - New branch [1] to <null> - route ID 123
> Sep 11 12:52:03 ire-lab-kamailio1 kamailio[567378]: INFO:
> {1757587923.201293 567378 1 1 OPTIONS 123} <script>: Destination down:
> OPTIONS sip:10.20.0.7:5060 (<null>)
> Sep 11 12:52:03 ire-lab-kamailio1 kamailio[567378]: INFO:
> {1757587923.201722 567378 1 1 OPTIONS 123} <script>: NOTIFY_ENDPOINT_STATUS
> - notifying XPhere with SBC_STATUS:{"type":"SBC_STATUS","endpoint":"sip:
> 10.20.0.7:5060
> ","sip_code":0,"reason":"DOWN","timestamp":"1757587923.201674"}
> Sep 11 12:52:03 ire-lab-kamailio1 kamailio[567378]: INFO:
> {1757587923.201827 567378 1 1 OPTIONS 123} <script>: Destination down:
> OPTIONS sip:10.20.0.6:5060 (<null>)
> Sep 11 12:52:03 ire-lab-kamailio1 kamailio[567378]: INFO:
> {1757587923.202010 567378 1 1 OPTIONS 123} <script>: NOTIFY_ENDPOINT_STATUS
> - notifying XPhere with SBC_STATUS:{"type":"SBC_STATUS","endpoint":"sip:
> 10.20.0.6:5060
> ","sip_code":0,"reason":"DOWN","timestamp":"1757587923.201975"}
> Sep 11 12:52:05 ire-lab-kamailio1 kamailio[567378]: INFO:
> {1757587925.951168 567378 1 102 INVITE
> [email protected]:5060} <script>:
> SPOOL_CALL_STATUS - spooling CALL_STATUS
> SBC_STATUS:{"type":"SBC_STATUS","endpoint":"sip:10.20.0.6:5060
> ","sip_code":0,"reason":"DOWN","timestamp":"1757587923.201975"}
> Sep 11 12:52:05 ire-lab-kamailio1 kamailio[567378]: INFO:
> {1757587925.951877 567378 1 102 INVITE
> [email protected]:5060} <script>: MANAGE_FAILURE
> - next RTJson route selected - relaying call - retry_on_failure = 0
> route_index=1
> Sep 11 12:52:05 ire-lab-kamailio1 kamailio[567378]: INFO:
> {1757587925.951944 567378 1 102 INVITE
> [email protected]:5060} <script>: RELAY -
> Modifying SIP headers from INVITE
> Sep 11 12:52:05 ire-lab-kamailio1 kamailio[567378]: ERROR:
> {1757587925.951951 567378 1 102 INVITE
> [email protected]:5060} app_jsdt
> [app_jsdt_mod.c:332]: w_app_jsdt_run(): p1 too long 1319
> Sep 11 12:52:05 ire-lab-kamailio1 kamailio[567378]: INFO:
> {1757587925.952251 567378 1 102 INVITE
> [email protected]:5060} <script>: MANAGE_BRANCH
> - {"routes":[{"branch_flags":8,"default_timeout":10,"dst_uri":"sip:
> 10.20.0.6:5060","headers":{"extra":"X-Hdr-A:
> abc\r\n","from":{"display":"Alice","uri"
> Sep 11 12:52:05 ire-lab-kamailio1 kamailio[567378]: INFO:
> {1757587925.952311 567378 1 102 INVITE
> [email protected]:5060} <script>: MANAGE_BRANCH
> - using new route index 1
> Sep 11 12:52:05 ire-lab-kamailio1 kamailio[567378]: INFO:
> {1757587925.952425 567378 1 102 INVITE
> [email protected]:5060} <script>: MANAGE_BRANCH
> - New branch [2] to sip:[email protected] - route ID 456
> Sep 11 12:52:10 ire-lab-kamailio1 kamailio[567378]: INFO:
> {1757587930.951206 567378 1 102 INVITE
> [email protected]:5060} <script>:
> SPOOL_CALL_STATUS - spooling CALL_STATUS
> SBC_STATUS:{"type":"SBC_STATUS","endpoint":"sip:10.20.0.6:5060
> ","sip_code":0,"reason":"DOWN","timestamp":"1757587923.201975"}
> Sep 11 12:52:10 ire-lab-kamailio1 kamailio[567378]: INFO:
> {1757587930.951665 567378 1 102 INVITE
> [email protected]:5060} <script>: MANAGE_FAILURE
> - retry_on_failure = 0
> Sep 11 12:52:10 ire-lab-kamailio1 kamailio[567378]: ERROR:
> {1757587930.951721 567378 1 102 INVITE
> [email protected]:5060} <script>: MANAGE_FAILURE
> - no more routes available for RTJson
> Sep 11 12:52:10 ire-lab-kamailio1 kamailio[567378]: INFO:
> {1757587930.952238 567378 1 102 INVITE
> [email protected]:5060} <script>:
> NOTIFY_CALL_REJECT - notifying XPhere with
> CALL_REJECT:54929:139397316:{"type":"CALL_REJECT","remote_ip_port":"
> 10.20.0.5:5060","local_ip_port":"10.20.0.4:5060","protocol":"udp","sip_error":{"error_code":"408","error_text":"Request
> Timeout","from":"\"Anonymous\" <sip:[email protected]
> >;tag=as54ab6b37","to":"<sip:[email protected]>","call_id":"
> [email protected]:5060"},"crankback_history":[{"route_id":"123","error_code":408,"reason":"Request
> Timeout"},{"route_id":"456","error_code":408,"reason":"Request
> Timeout"}],"timestamp":"1757587930.952136"}
> Sep 11 12:52:10 ire-lab-kamailio1 kamailio[567378]: NOTICE:
> {1757587930.952260 567378 1 102 INVITE
> [email protected]:5060} tm [tm.c:1735]:
> w_t_newtran(): transaction already in process 0x7f4622dccf30
> Sep 11 12:52:10 ire-lab-kamailio1 kamailio[567378]: INFO:
> {1757587930.952368 567378 1 102 INVITE
> [email protected]:5060} <script>:
> NOTIFY_CALL_REJECT -
> CALL_REJECT:54929:139397316:{"type":"CALL_REJECT","remote_ip_port":"
> 10.20.0.5:5060","local_ip_port":"10.20.0.4:5060","protocol":"udp","sip_error":{"error_code":"408","error_text":"Request
> Timeout","from":"\"Anonymous\" <sip:[email protected]
> >;tag=as54ab6b37","to":"<sip:[email protected]>","call_id":"
> [email protected]:5060"},"crankback_history":[{"route_id":"123","error_code":408,"reason":"Request
> Timeout"},{"route_id":"456","error_code":408,"reason":"Request
> Timeout"}],"timestamp":"1757587930.952136"}
> Sep 11 12:52:11 ire-lab-kamailio1 kamailio[567385]: INFO:
> {1757587931.484662 567385 1 1 OPTIONS 123} <script>: evapi:message-received
> - Received EVAPI message: RESPONSE:54929:139397316:{"action":
> "CALL_REJECT", "call_id": "[email protected]:5060",
> "reject": {"error_code": 480, "error_text": "some text"}}
> Sep 11 12:52:11 ire-lab-kamailio1 kamailio[567385]: INFO:
> {1757587931.484727 567385 1 1 OPTIONS 123} <script>: Part 0: 'RESPONSE'
> Sep 11 12:52:11 ire-lab-kamailio1 kamailio[567385]: INFO:
> {1757587931.484733 567385 1 1 OPTIONS 123} <script>: Part 1: '54929'
> Sep 11 12:52:11 ire-lab-kamailio1 kamailio[567385]: INFO:
> {1757587931.484739 567385 1 1 OPTIONS 123} <script>: Part 2: '139397316'
> Sep 11 12:52:11 ire-lab-kamailio1 kamailio[567385]: INFO:
> {1757587931.484743 567385 1 1 OPTIONS 123} <script>: Part 3: '{"action":
> "CALL_REJECT", "call_id": "[email protected]:5060",
> "reject": {"error_code": 480, "error_text": "some text"}}'
> Sep 11 12:52:11 ire-lab-kamailio1 kamailio[567385]: INFO:
> {1757587931.484768 567385 1 1 OPTIONS 123} <script>: evapi:message-received
> - t_continue for 54929/139397316
> Sep 11 12:52:11 ire-lab-kamailio1 kamailio[567385]: WARNING:
> {1757587931.484775 567385 1 1 OPTIONS 123} tm [t_suspend.c:197]:
> t_continue_helper(): active transaction not found
> Sep 11 12:52:11 ire-lab-kamailio1 kamailio[567385]: WARNING:
> {1757587931.484775 567385 1 1 OPTIONS 123} tmx [tmx_mod.c:818]:
> w_t_continue(): resuming the processing of transaction [54929:139397316]
> failed
> Sep 11 12:52:17 ire-lab-kamailio1 kamailio[567379]: DEBUG: tm
> [timer.c:642]: wait_handler(): finished transaction: 0x7f4622dc3da0
> (p:0x7f4622bc7700/n:0x7f4622bc7700)
> Sep 11 12:52:17 ire-lab-kamailio1 kamailio[567379]: DEBUG: tm
> [h_table.c:133]: free_cell_helper(): freeing transaction 0x7f4622dc3da0
> from timer.c:651
> Sep 11 12:52:17 ire-lab-kamailio1 kamailio[567379]: DEBUG: tm
> [timer.c:642]: wait_handler(): finished transaction: 0x7f4622dc61e0
> (p:0x7f4622bc76a0/n:0x7f4622bc76a0)
> Sep 11 12:52:17 ire-lab-kamailio1 kamailio[567379]: DEBUG: tm
> [h_table.c:133]: free_cell_helper(): freeing transaction 0x7f4622dc61e0
> from timer.c:651
> Sep 11 12:52:17 ire-lab-kamailio1 kamailio[567379]: DEBUG: dialog
> [dlg_cseq.c:116]: dlg_cseq_prepare_new_msg(): prepare new msg for cseq
> update operations
> Sep 11 12:52:17 ire-lab-kamailio1 kamailio[567379]: DEBUG: <core>
> [core/parser/parse_fline.c:247]: parse_first_line(): first line type 1
> (request) flags 1
> Sep 11 12:52:17 ire-lab-kamailio1 kamailio[567379]: DEBUG: <core>
> [core/parser/msg_parser.c:721]: parse_msg(): SIP Request:
> Sep 11 12:52:17 ire-lab-kamailio1 kamailio[567379]: DEBUG: <core>
> [core/parser/msg_parser.c:722]: parse_msg():  method:  <OPTIONS>
> Sep 11 12:52:17 ire-lab-kamailio1 kamailio[567379]: DEBUG: <core>
> [core/parser/msg_parser.c:724]: parse_msg():  uri:     <sip:10.20.0.7:5060
> >
> Sep 11 12:52:17 ire-lab-kamailio1 kamailio[567379]: DEBUG: <core>
> [core/parser/msg_parser.c:726]: parse_msg():  version: <SIP/2.0>
> Sep 11 12:52:17 ire-lab-kamailio1 kamailio[567379]: DEBUG: <core>
> [core/parser/parse_hname2.c:314]: parse_sip_header_name(): parsed header
> name [Via] type 1
> Sep 11 12:52:17 ire-lab-kamailio1 kamailio[567379]: DEBUG: <core>
> [core/parser/parse_via.c:1309]: parse_via_param(): Found param type 232,
> <branch> = <z9hG4bK379b.1343f1a4000000000000000000000000.0>; state=16
> Sep 11 12:52:17 ire-lab-kamailio1 kamailio[567379]: DEBUG: <core>
> [core/parser/parse_via.c:2663]: parse_via(): end of header reached, state=5
> Sep 11 12:52:17 ire-lab-kamailio1 kamailio[567379]: DEBUG: <core>
> [core/parser/msg_parser.c:591]: parse_headers(): Via found, flags=2
>
>
> And the Kamailio script:
>
> #!KAMAILIO
>
> #!define FLT_ACC 1
> #!define FLT_ACCMISSED 2
> #!define FLT_ACCFAILED 3
> #!define WITH_ACL
> #!define WITH_MONITORING
> ##!define WITH_DMQ  # uncomment if DMQ is needed
>
> ####### Global Parameters #########
> debug=3
> log_stderror=no
> memdbg=5
> memlog=5
> log_facility=LOG_LOCAL0
> fork=yes
> children=2
> log_prefix_mode = 1
> log_prefix="{$TV(Sn) $pp $mt $hdr(CSeq) $ci} "
> disable_sctp = yes
> force_rport  = yes
> rundir="/tmp"
> pv_buffer_size=65536
>
>
>
> ####### Modules Section ########
> mpath="/usr/local/lib64/kamailio/modules/"
>
> loadmodule "jsonrpcs.so"
> loadmodule "db_mysql.so"
> loadmodule "db_cluster.so"
> loadmodule "kex.so"
> loadmodule "corex.so"
> loadmodule "tm.so"
> loadmodule "tmx.so"
> loadmodule "sl.so"
> loadmodule "rr.so"
> loadmodule "pv.so"
> loadmodule "maxfwd.so"
> loadmodule "usrloc.so"
> loadmodule "registrar.so"
> loadmodule "textops.so"
> loadmodule "siputils.so"
> loadmodule "xlog.so"
> loadmodule "sanity.so"
> loadmodule "ctl.so"
> loadmodule "cfg_rpc.so"
> loadmodule "acc.so"
> loadmodule "evapi.so"
> loadmodule "jansson.so"
> loadmodule "rtjson.so"
> loadmodule "dispatcher.so"
> loadmodule "dialog.so"
> loadmodule "permissions"
> loadmodule "app_jsdt.so"
> #!ifdef WITH_DMQ
> loadmodule "dmq.so"
> #!endif
> loadmodule "htable.so"
>
> include_file "listen.cfg"
> include_file "db_conn.cfg"
>
> ####### Setting module-specific parameters #######
> # ----- Permissions params -----
> modparam("permissions", "db_url", "cluster://k1")
> modparam("permissions", "db_mode", 1)
> modparam("permissions", "reload_delta", 10)
>
> # ----- jsonrpcs params -----
> modparam("jsonrpcs", "pretty_format", 1)
> /* set the path to RPC fifo control file */
> modparam("jsonrpcs", "fifo_name", "/tmp/kamailio_ire1_rpc.fifo")
> /* set the path to RPC unix socket control file */
> modparam("jsonrpcs", "dgram_socket", "/tmp/kamailio_ire1_rpc.sock")
>
> # ----- ctl params -----
> /* set the path to RPC unix socket control file */
> modparam("ctl", "binrpc", "unix:/tmp/kamailio_ire1_ctl")
>
>
> # ----- ctl params -----
> /* set the path to RPC unix socket control file */
> modparam("ctl", "binrpc", "unix:/tmp/kamailio_ire1_ctl")
>
> # ----- tm params -----
> modparam("tm", "auto_inv_100",             1)      # automatically send a
> 100 reply to INVITEs (0 is off).
> modparam("tm", "max_inv_lifetime",         180000) # Maximum time an
> INVITE transaction is allowed to be active (in milliseconds).
> modparam("tm", "failure_reply_mode",       3)      # all previous branches
> are discarded if there is a new serial forking leg. This is the default
> behaviour
> modparam("tm", "fr_timer",                 5000)   # Timer which hits if
> no final reply for a request or ACK for a negative INVITE reply arrives (in
> milliseconds).
> #modparam("tm", "fr_inv_timer",             30000)   # Timer which hits if
> no final reply for an INVITE arrives after a provisional message was
> received (in milliseconds).
> #modparam("tm", "restart_fr_on_each_reply", 1)      # if 1, fr_inv_timer
> for an INVITE transaction will be restarted for each provisional reply
> received (rfc3261 mandated behaviour).
>                                                    # if 0, he fr_inv_timer
> will be restarted only for the first provisional replies and for increasing
> replies greater or equal 180
> modparam("tm", "retr_timer1",              1000)   # Initial
> modparam("tm", "cancel_b_method",          2)      # used when attempting
> to CANCEL an unreplied transaction branch (a branch where no response was
> received). The possible values are 0, 1, and 2.
>
> # ----- rr params -----
> modparam("rr", "enable_full_lr",    1)
> modparam("rr", "append_fromtag",    1)
> modparam("rr", "enable_double_rr",  0)
>
> # ----- evapi params -----
> modparam("evapi", "workers", 4)
> modparam("evapi", "bind_addr", "10.20.0.4:8448")
> modparam("evapi", "netstring_format", 1)
>
>
> # ----- dmq params -----
> #!ifdef WITH_DMQ
> modparam("dmq", "server_address",       DMQ_SERVER_ADDRESS )
> modparam("dmq", "notification_address", DMQ_NOTIFICATION_ADDRESS_1 )
> # repeat previous line according to number of notification addresses of
> your environment
> modparam("dmq", "multi_notify",         0)
> modparam("dmq", "num_workers",          6)
> modparam("dmq", "ping_interval",        60)
> #modparam("dmq_usrloc", "enable",        1)
> #!endif
>
> # ----- dialog params -----
> # Optimized for high CPS
> modparam("dialog", "db_mode",               1)
> modparam("dialog", "db_url",                "cluster://k1")
> modparam("dialog", "dlg_flag",         4)
> modparam("dialog", "track_cseq_updates", 1)
> modparam("dialog", "dlg_match_mode", 1)
> modparam("dialog", "default_timeout", 43200) // 12hours call duration
> limit by default
> modparam("dialog", "profiles_with_value", "concurrent")
> modparam("dialog", "profiles_no_value", "total")
> modparam("dialog", "hash_size",         16384)  # Increased for 4000+ CPS
> #!ifdef WITH_DMQ
> modparam("dialog", "enable_dmq",            1)
> #!endif
>
> # ----- dispatcher params -----
> #!ifdef WITH_MONITORING
>     modparam("dispatcher", "db_url",
> "cluster://k1")         # Use DBURL variable for database parameters
>     modparam("dispatcher", "ds_ping_interval",              3)
>           # How often to ping destinations to check status
>     modparam("dispatcher", "ds_ping_method",                "OPTIONS")
>           # Send SIP Options ping
>     modparam("dispatcher", "ds_ping_from",
> "sip:[email protected]")
>     modparam("dispatcher", "ds_probing_threshold",          3)
>           # How many failed pings in a row do we need before we consider it
> down
>     modparam("dispatcher", "ds_inactive_threshold",         2)
>           # How many sucessful pings in a row do we need before considering
> it up
>     modparam("dispatcher", "ds_ping_latency_stats",         1)
>           # Enables stats on latency
>     modparam("dispatcher", "ds_probing_mode",               1)
>           # Keeps pinging gateways when state is known (to detect change in
> state)
>     modparam("dispatcher", "ds_ping_latency_stats",         1)
>           # for algorithm 13 - Latency check
>     modparam("dispatcher", "ds_latency_estimator_alpha",    200)
>           # configure latency estimator
>     modparam("dispatcher", "reload_delta",                  5)
>           # number of seconds to wait before a new reload of dispatcher
> records is executed. default is 5
>     modparam("dispatcher", "flags",                         2)
>           # Enable database storage of flags
> #!endif
>
> # ----- app_jsdt params -----
> modparam("app_jsdt", "load",                 "/etc/kamailio/functions.js")
>
> # ----- rtjson params -----
> modparam("rtjson", "xavp_cfg", "rtjson")
>
> # ----- htable definition for evapi_event message response processing
> modparam("htable", "db_url", "cluster://k1")
> modparam("htable", "htable", "evcache=>size=64;autoexpire=120;dbmode=1;")
>
>
> ####### Routing Logic ########
>
> # Main SIP request routing logic
> request_route {
>
>     $avp(START_TIME)=$utimef(%Y-%m-%d %H:%M:%S);
>     $var(send_sock) = $null;
>
>
>     #!ifdef WITH_ACL
>         $avp(GROUPID) = allow_address_group($si, $sp);
>
>         if ( $avp(GROUPID) == 100 || !allow_address_group($si, $sp) ) {
>                 xlog("L_INFO", "INIT - $si:$sp is not in the allowed ACL
> Group ID !\n");
>                 # uncoment below to return SIP 401 error to non-allowed
> clients
>                 #sl_reply("401", "Address not allowed");
>                 exit;
>         }
>
>         if (is_method("OPTIONS")){
>             sl_send_reply("200","OK");
>             exit;
>         }
>     #!endif
>
>     #!ifdef WITH_DMQ
>     route(HANDLE_DMQ);
>     #!endif
>
>     # per request initial checks
>     route(REQINIT);
>
>     # CANCEL processing
>     if (is_method("CANCEL")) {
>         if (t_check_trans()) {
>             xlog("L_INFO","INIT - CANCEL detected\n");
>             route(SEND_CALL_STATUS);
>             t_relay();
>         }
>         exit;
>     }
>
>     # handle retransmissions
>     if (!is_method("ACK")) {
>         if(t_precheck_trans()) {
>             t_check_trans();
>             exit;
>         }
>         t_check_trans();
>     }
>
>     # handle requests within SIP dialogs
>     route(WITHINDLG);
>
>     # record routing for dialog forming requests (in case they are routed)
> # - remove preloaded route headers
> remove_hf("Route");
> if (is_method("INVITE"))
> record_route();
>
>     # record routing for dialog forming requests
>     if (is_method("INVITE"))
>     {
>         $var(json_headers) = $null;
>         $var(route_index)  = 0;
>         $var(retry)        = 0;
>         setflag(1);  # Using the same flag as dlg_flag from dialog module
>         $dlg_var(routeid) = $null;
>         $dlg_var(branch_stats) = '[]'; # empty JSON array for keeping
> track of route status (failures)
>
>         dlg_manage();
>         route(HANDLE_INVITE);
>         exit;
>     }
>
>     route(RELAY);
>     exit;
> }
>
>
> # Handle INVITE requests
> route[HANDLE_INVITE] {
>     # Send INVITE details to Python script
>     # Convert headers to JSON
>     //if ($var(s:json_headers) == $null)
>         route(HEADERS_TO_JSON);
>
>     # Send to Python via EVAPI
>     xlog("L_INFO", "HANDLE_INVITE - suspended transaction for INVITE.
> Index: $T(id_index) - Label: $T(id_label) \n" );
>     $var(evmsg) = "INVITE:" + $T(id_index) + ":" + $T(id_label) + ":" +
> $var(json_headers);
>
>
> evapi_async_relay("INVITE:$T(id_index):$T(id_label):$var(json_headers)");
>     exit;
> }
>
> # Handle responses from Python script
> event_route[evapi:message-received]
> {
>     # Parse the message format: RESPONSE:index:label:data
>     $var(msg) = $evapi(msg);
>     #$var(logmsg) = $(var(msg){s.substr,0,100});
>     xlog("L_INFO", "evapi:message-received - Received EVAPI message:
> $var(msg) ...\n");
>
>
>     $var(type) = $(var(msg){s.select,0,:});
>     $var(tindex) = $(var(msg){s.select,1,:}{s.int});
>     $var(tlabel) = $(var(msg){s.select,2,:}{s.int});
>     $var(response) = $(var(msg){re.subst,/^[^:]*:[^:]*:[^:]*://});
>
>     xlog("L_INFO", "Part 0: '$var(type)'\n");
>     xlog("L_INFO", "Part 1: '$var(tindex)'\n");
>     xlog("L_INFO", "Part 2: '$var(tlabel)'\n");
>     xlog("L_INFO", "Part 3: '$var(response)'\n");
>
>     if (  $var(type) == "RESPONSE" && $var(tindex) =~ "^[0-9]+$" &&
> $var(tlabel) =~ "^[0-9]+$" )
>     {
>
> xlog("L_INFO", "evapi:message-received - t_continue for
> $var(tindex)/$var(tlabel)\n");
> t_continue("$var(tindex)", "$var(tlabel)", "EVAPIRESPONSE");
>     }
>     else
>     {
>         xlog("L_INFO",  "evapi:message-received - invalid message received
> from EVAPI. Cancelling the call \n");
>         t_reply("500", "Internal Server Error");
>         exit;
>     }
> }
>
>
> # Resume processing after Python response
> route[EVAPIRESPONSE] {
>     xlog("L_INFO", "EVAPIRESPONSE - Resuming Call processing with index
> $var(tindex) label $var(tlabel)\n");
>     xlog("L_INFO", "EVAPIRESPONSE - JSON : $var(response) \n");
>
>     # Test each condition individually
>     if ($var(response) == "FALSE" or $var(response) == "NO_ROUTES")
>     {
>         # Check if response is FALSE (drop the call)
>         xlog("L_ERR", "EVAPIRESPONSE - Python script returned FALSE or NO
> ROUTES, dropping call\n");
>         //t_reply("500", "Internal Server Error");
>         $var(code) = 500;
>         $var(text) = "Internal Server Error";
>         route(REPLY_SAFE);
>         exit;
>     }
>
>     if (jansson_get("action", $var(response), "$var(action)")){
>         if ($var(action) == "DROP") {
>             jansson_get("error_code", $var(response), "$var(error_code)");
>             jansson_get("error_text", $var(response), "$var(error_text)");
>             xlog("L_INFO", "EVAPIRESPONSE - dropping call with returned
> error $var(error_code) - $var(error_text) \n");
>             $var(code) = $var(error_code);
>             $var(text) = $var(error_text);
>             route(REPLY_SAFE);
>             exit;
>         }else
>         if ($var(action) == "CALL_REJECT")
>         {
>             jansson_get("reject", $var(response), "$var(sip_error)");
>             if ( "$var(sip_error)" == "" )
>             {
>                 xlog("L_INFO", "EVAPIRESPONSE - CALL_REJECT with no
> specific error code; return the received error\n");
>                 return;
>             }
>             else
>             {
>                 jansson_get("error_code", $var(sip_error),
> "$var(error_code)");
>                 jansson_get("error_text", $var(sip_error),
> "$var(error_text)");
>                 xlog("L_INFO", "EVAPIRESPONSE - CALL_REJECT with
> $var(error_code) - $var(error_text)\n");
>                 $var(code) = $var(error_code);
>                 $var(text) = $var(error_text);
>
>                 route(REPLY_SAFE);
>                 exit;
>             }
>         }
>     }
>
>     # Process RTJSON routing
>     if (jansson_get("rtjson", $var(response), "$var(rtjson_str)")) {
>         jansson_get("retry_on_failure", $var(response),
> "$dlg_var(retry_on_failure)");
>         xlog("L_INFO", "EVAPIRESPONSE - retry_on_failure =
> $dlg_var(retry_on_failure) \n");
>         $dlg_var(rtjson_str) = $var(rtjson_str);
>         # Process routes from RTJSON
>         route(RTJSON_PROCESS);
>     } else {
>         xlog("L_INFO", "EVAPIRESPONSE - Invalid response format from
> Python\n");
>         //t_reply("500", "Internal Server Error");
>         $var(code) = 500;
>         $var(text) = "Internal Server Error";
>         route(REPLY_SAFE);
>         exit;
>     }
> }
>
> route[NOTIFY_CALL_REJECT]
> {
>     # Send route failure notification to Python
>     $var(failure_data) = $null;
>     jansson_set("string" , "type"           , "CALL_REJECT"             ,
> "$var(failure_data)" );
>
>     jansson_set("string" , "remote_ip_port" , "$si:$sp"                 ,
> "$var(failure_data)" );
>     jansson_set("string" , "local_ip_port"  , "$RAi:$RAp"               ,
> "$var(failure_data)" );
>     jansson_set("string" , "protocol"       , "$pr"                     ,
> "$var(failure_data)" );
>
>     jansson_set("string", "error_code"      , "$T(reply_code)"          ,
> "$var(sip_error_code_obj)");
>     jansson_set("string", "error_text"      , "$T(reply_reason)"        ,
> "$var(sip_error_code_obj)");
>     jansson_set("string", "from"            , "$hdr(From)"              ,
> "$var(sip_error_code_obj)");
>     jansson_set("string", "to"              , "$hdr(To)"                ,
> "$var(sip_error_code_obj)");
>     jansson_set("string", "call_id"         , "$ci"                     ,
> "$var(sip_error_code_obj)" );
>
>     jansson_set("obj"   , "sip_error"       , "$var(sip_error_code_obj)",
> "$var(failure_data)");
>     jansson_set("array" ,"crankback_history", "$dlg_var(branch_stats)"  ,
> "$var(failure_data)");
>     jansson_set("string", "timestamp"       , "$TV(Sn)"                 ,
> "$var(failure_data)" );
>
>     $var(evmsg) = "CALL_REJECT:" + $T(id_index) + ":" + $T(id_label) + ":"
> + $var(failure_data);
>     xlog("L_INFO","NOTIFY_CALL_REJECT - notifying XPhere with $var(evmsg)
> \n");
>
>
> evapi_relay("CALL_REJECT:$T(id_index):$T(id_label):$var(failure_data)");
> }
>
>
> # Tiny helper to reply correctly inside/outside TM
> route[REPLY_SAFE] {
>     # validate code (default to 480 if bad/empty)
>     if (!($var(code) =~ "^[1-6][0-9][0-9]$")) $var(code) = 480;
>     if ($var(text) == "") $var(text) = "Temporarily Unavailable";
>     # remove CR/LF that can break the reason phrase
>     $var(text) = $(var(text){re.subst,/[\r\n]/ /g});
>
>     if (t_check_trans()) {
>         xlog("L_INFO", "REPLY_SAFE - replying with t_reply\n");
>         t_reply("$var(code)", "$var(text)");
>     } else {
>         xlog("L_INFO", "REPLY_SAFE - replying with send_reply\n");
>         sl_send_reply("$var(code)", "$var(text)");
>     }
>     xlog("L_INFO", "REPLY_SAFE - replied $var(code) - $var(text)\n");
>     exit;
> }
>
> # Failure route
> failure_route[MANAGE_FAILURE] {
>
>     if (t_is_canceled()) {
>         exit;
>     }
>
>     route(SPOOL_CALL_STATUS);
>     route(PIN_SOCKET);
>     # Try next route if available
>     if (rtjson_next_route()) {
>         # increase the route index
>         $var(route_index) = $var(route_index) + 1;
>         # Try next route from RTJson if available
>         xlog("L_INFO","MANAGE_FAILURE - next RTJson route selected -
> relaying call - retry_on_failure = $dlg_var(retry_on_failure)
> route_index=$var(route_index)\n");
>         route(RELAY);
>     } else {
>         xlog("L_INFO","MANAGE_FAILURE - retry_on_failure =
> $dlg_var(retry_on_failure)\n");
>         if ($dlg_var(retry_on_failure) == 1)
>         {   // if the routes received have property retry_on_failure = 1
> then
>             // request a new list of routes and retry
>             $var(retry) = 1;
>             $var(route_index) = 0;
>             xlog("L_INFO","MANAGE_FAILURE - all routes failed. requesting
> new RTJson\n");
>             route(HANDLE_INVITE); // send a new request for new routes
>         }else{
>             # No more routes available
>             xlog("L_ERROR","MANAGE_FAILURE - no more routes available for
> RTJson\n");
>             #### FIX ME - implement CALL_REJECT
>             route(NOTIFY_CALL_REJECT);
>             t_reply("503", "Service Unavailable!");
>             exit;
>         }
>     }
>
>     exit;
> }
>
> # Relay route
> route[RELAY] {
>     if (is_method("INVITE|UPDATE|BYE"))  # |BYE
>     {
>         xlog("L_INFO","RELAY - Modifying SIP headers from INVITE\n");
>         jsdt_run("modify_invite_headers", "$dlg_var(rtjson_str)",
> "$var(route_index)" );
>         if (!t_is_set("branch_route")) t_on_branch("MANAGE_BRANCH");
>     }
>     if (is_method("INVITE|UPDATE")) {
>         if (!t_is_set("onreply_route")) t_on_reply("MANAGE_REPLY");
>     }
>     if (is_method("INVITE")) {
>         if (!t_is_set("failure_route")) t_on_failure("MANAGE_FAILURE");
>     }
>     route(PIN_SOCKET);
>     if (!t_relay())
>     {
>         xlog("L_INFO","RELAY - Returned from event");
>         sl_reply_error();
>     }
>     exit;
> }
>
> route[PIN_SOCKET] {
>     # routing block that sets the socket IP:PORT to SIP messages
>     # sent to the egress side
>     if (is_method("INVITE") && !has_totag()) {
>         dlg_manage();
>         $var(proto) = $pr;                  # "udp" / "tcp"
>         xlog("L_DEBUG", "PIN_SOCKET - stored dlg_sock=< $pr:$Ri:$Rp > \n");
>         $dlg_var(send_sock) = "$pr:$Ri:$Rp";      # e.g. udp:
> 10.20.0.4:5061
>     }
>
>     # choose the socket we’ll force
>     if ($dlg_var(send_sock) != $null) {
>         $var(sock) = $dlg_var(send_sock);
>     } else {
>         $var(proto) = $pr;
>         xlog("L_DEBUG", "PIN_SOCKET - setting $pr:$Ri:$Rp \n");
>         $var(sock)  = "$pr:$Ri:$Rp";              # requests without dialog
>     }
>
>     xlog("L_DEBUG", "PIN_SOCKET - forcing <$var(sock)> (recv
> $pr:$Ri:$Rp)\n");
>     set_send_socket($var(sock));
>     xlog("L_DEBUG", "PIN_SOCKET - $$var(sock) = $var(sock)  -
> $$dlg_var(send_sock) = $dlg_var(send_sock) \n");
> }
>
>
>
> Atenciosamente / Kind Regards / Cordialement / Un saludo,
>
>
> *Sérgio Charrua*
>
>
>
>
>
>
> On Tue, Sep 9, 2025 at 2:39 PM Henning Westerholt <[email protected]> wrote:
>
>> Hello,
>>
>>
>>
>> did not looked to the whole script, but the usual action would be
>> enabling the debug log and see where the 503 is actually generated from.
>>
>>
>>
>> Cheers,
>>
>>
>>
>> Henning
>>
>>
>>
>> *From:* Sergio Charrua via sr-users <[email protected]>
>> *Sent:* Freitag, 5. September 2025 19:34
>> *To:* Kamailio (SER) - Users Mailing List <[email protected]>
>> *Cc:* Sergio Charrua <[email protected]>
>> *Subject:* [SR-Users] send_reply not accepting values
>>
>>
>>
>> Hi all!
>>
>>
>>
>> I'm using EVAPI module. Upon INVITE, Kamailio gets a list of routes from
>> a script using *evapi_async_relay*() . The EVAPI script (Python) then
>> returns a RTJson structure.
>>
>> The Kamailio logic is set to iterate through each route and if at the end
>> all routes have failed (ex.: if all egress endpoints are unavailable), then
>> sends a EVAPI request using *evapi_relay*() to the script. Note that
>> this request is not asynchronous (using evapi_async_relay() would fail with
>> error stating that there is no transaction available....).
>>
>>
>> This is my evapi:message-received:
>>
>>
>>
>> event_route[evapi:message-received]
>>
>> {
>>
>>     # Parse the message format: RESPONSE:index:label:data
>>
>>     $var(msg) = $evapi(msg);
>>
>>     #$var(logmsg) = $(var(msg){s.substr,0,100});
>>
>>     xlog("L_INFO", "evapi:message-received - Received EVAPI message:
>> $var(msg) ...\n");
>>
>>
>>
>>
>>
>>     $var(type) = $(var(msg){s.select,0,:});
>>
>>     $var(tindex) = $(var(msg){s.select,1,:}{s.int});
>>
>>     $var(tlabel) = $(var(msg){s.select,2,:}{s.int});
>>
>>     $var(response) = $(var(msg){re.subst,/^[^:]*:[^:]*:[^:]*://});
>>
>>
>>
>>     xlog("L_INFO", "Part 0: '$var(type)'\n");
>>
>>     xlog("L_INFO", "Part 1: '$var(tindex)'\n");
>>
>>     xlog("L_INFO", "Part 2: '$var(tlabel)'\n");
>>
>>     xlog("L_INFO", "Part 3: '$var(response)'\n");
>>
>>
>>
>>     if (  $var(type) == "RESPONSE" && $var(tindex) =~ "^[0-9]+$" &&
>> $var(tlabel) =~ "^[0-9]+$" )
>>
>>     {
>>
>>         xlog("L_INFO", "evapi:message-received - RESPONSE index
>> $var(tindex) label $var(tlabel) \n");
>>
>>
>>
>>         xlog("L_INFO", "evapi:message-received - Continue Call
>> processing\n");
>>
>>
>>
>>         if (jansson_get("action", $var(response), "$var(action)")){
>>
>>             if ($var(action) == "CALL_REJECT"){
>>
>>                 route(EVAPIRESPONSE);
>>
>>             }
>>
>>         }
>>
>>         # Resume transaction
>>
>>         t_continue("$var(tindex)", "$var(tlabel)", "EVAPIRESPONSE");
>>
>>     }
>>
>>     else
>>
>>     {
>>
>>         xlog("L_INFO",  "evapi:message-received - invalid message
>> received from EVAPI. Cancelling the call \n");
>>
>>         t_reply("500", "Internal Server Error");
>>
>>         exit;
>>
>>     }
>>
>> }
>>
>>
>>
>> CALL_REJECT action is received after the *evapi_relay*() request to the
>> EVAPI script (python) that is launched after a route_failure.
>>
>> For example, Kamailio requests for error mappings when a call has been
>> tried and no egress endpoint was reachable.
>>
>>
>>
>> My EVAPIRESPONSE route block is:
>>
>>
>>
>> route[EVAPIRESPONSE] {
>>
>>     xlog("L_INFO", "EVAPIRESPONSE - Resuming INVITE processing with index
>> $var(tindex) label $var(tlabel)\n");
>>
>>     xlog("L_INFO", "EVAPIRESPONSE - JSON : $var(response) \n");
>>
>>
>>
>>     # Test each condition individually
>>
>>     if ($var(response) == "FALSE" or $var(response) == "NO_ROUTES")
>>
>>     {
>>
>>         # Check if response is FALSE (drop the call)
>>
>>         xlog("L_ERR", "EVAPIRESPONSE - Python script returned FALSE or NO
>> ROUTES, dropping call\n");
>>
>>         $var(code) = 500;
>>
>>         $var(text) = "Internal Server Error";
>>
>>         route(REPLY_SAFE);
>>
>>         exit;
>>
>>     }
>>
>>
>>
>>     if (jansson_get("action", $var(response), "$var(action)")){
>>
>>         if ($var(action) == "DROP") {
>>
>>             jansson_get("error_code", $var(response), "$var(error_code)");
>>
>>             jansson_get("error_text", $var(response), "$var(error_text)");
>>
>>             xlog("L_INFO", "EVAPIRESPONSE - dropping call with returned
>> error $var(error_code) - $var(error_text) \n");
>>
>>             $var(code) = $var(error_code);
>>
>>             $var(text) = $var(error_text);
>>
>>             route(REPLY_SAFE);
>>
>>         }else
>>
>>         if ($var(action) == "CALL_REJECT")
>>
>>         {
>>
>>             jansson_get("reject", $var(response), "$var(sip_error)");
>>
>>             if ( "$var(sip_error)" == "" )
>>
>>             {
>>
>>                 xlog("L_INFO", "EVAPIRESPONSE - CALL_REJECT with no
>> specific error code; return the received error\n");
>>
>>                 return;
>>
>>             }
>>
>>             else
>>
>>             {
>>
>>                 jansson_get("error_code", $var(sip_error),
>> "$var(error_code)");
>>
>>                 jansson_get("error_text", $var(sip_error),
>> "$var(error_text)");
>>
>>                 xlog("L_INFO", "EVAPIRESPONSE - CALL_REJECT with
>> $var(error_code) - $var(error_text)\n");
>>
>>                 $var(code) = $var(error_code);
>>
>>                 $var(text) = $var(error_text);
>>
>>                 route(REPLY_SAFE);
>>
>>             }
>>
>>         }
>>
>>     }
>>
>>
>>
>>     # Process RTJSON routing
>>
>>     if (jansson_get("rtjson", $var(response), "$var(rtjson_str)")) {
>>
>>         jansson_get("retry_on_failure", $var(response),
>> "$dlg_var(retry_on_failure)");
>>
>>         xlog("L_DEBUG", "EVAPIRESPONSE - retry_on_failure =
>> $dlg_var(retry_on_failure) \n");
>>
>>         $dlg_var(rtjson_str) = $var(rtjson_str);
>>
>>         # Process routes from RTJSON
>>
>>         route(RTJSON_PROCESS);
>>
>>     } else {
>>
>>         xlog("L_ERR", "EVAPIRESPONSE - Invalid response format from
>> Python\n");
>>
>>         $var(code) = 500;
>>
>>         $var(text) = "Internal Server Error";
>>
>>         route(REPLY_SAFE);
>>
>>         exit;
>>
>>     }
>>
>> }
>>
>>
>>
>> # Tiny helper to reply correctly inside/outside TM
>>
>> route[REPLY_SAFE] {
>>
>>     # validate code (default to 480 if bad/empty)
>>
>>     if (!($var(code) =~ "^[1-6][0-9][0-9]$")) $var(code) = 480;
>>
>>     if ($var(text) == "") $var(text) = "Temporarily Unavailable";
>>
>>     # remove CR/LF that can break the reason phrase
>>
>>     $var(text) = $(var(text){re.subst,/[\r\n]/ /g});
>>
>>
>>
>>     if (t_check_trans()) {
>>
>>         xlog("L_INFO", "REPLY_SAFE - replying with t_reply\n");
>>
>>         t_reply("$var(code)", "$var(text)");
>>
>>     } else {
>>
>>         xlog("L_INFO", "REPLY_SAFE - replying with send_reply\n");
>>
>>         send_reply("$var(code)", "$var(text)");
>>
>>     }
>>
>>     exit;
>>
>> }
>>
>>
>>
>> I have tried with t_reply, sl_send_reply, send_reply but the SIP trace
>> only shows SIP 503 Service Unavailable being sent from Kamailio to the
>> ingress endpoint.
>>
>> Setting log to DEBUG level doesn't show anything neither:
>>
>>
>>
>> Sep  5 19:16:48 ire-lab-kamailio1 kamailio[457395]: INFO:
>> {1757092608.169257 457395 1 1 OPTIONS 123} <script>: evapi:message-received
>> - Received EVAPI message: RESPONSE:2825:1816929401:{"action":
>> "CALL_REJECT", "call_id": "
>> [email protected]:5060", "reject":
>> {"error_code": 480, "error_text": "some text"}} ...
>>
>> Sep  5 19:16:48 ire-lab-kamailio1 kamailio[457395]: INFO:
>> {1757092608.169485 457395 1 1 OPTIONS 123} <script>: Part 0: 'RESPONSE'
>>
>> Sep  5 19:16:48 ire-lab-kamailio1 kamailio[457395]: INFO:
>> {1757092608.169497 457395 1 1 OPTIONS 123} <script>: Part 1: '2825'
>>
>> Sep  5 19:16:48 ire-lab-kamailio1 kamailio[457395]: INFO:
>> {1757092608.169506 457395 1 1 OPTIONS 123} <script>: Part 2: '1816929401'
>>
>> Sep  5 19:16:48 ire-lab-kamailio1 kamailio[457395]: INFO:
>> {1757092608.169514 457395 1 1 OPTIONS 123} <script>: Part 3: '{"action":
>> "CALL_REJECT", "call_id": "
>> [email protected]:5060", "reject":
>> {"error_code": 480, "error_text": "some text"}}'
>>
>> Sep  5 19:16:48 ire-lab-kamailio1 kamailio[457395]: INFO:
>> {1757092608.169639 457395 1 1 OPTIONS 123} <script>: evapi:message-received
>> - RESPONSE index 2825 label 1816929401
>>
>> Sep  5 19:16:48 ire-lab-kamailio1 kamailio[457395]: INFO:
>> {1757092608.169654 457395 1 1 OPTIONS 123} <script>: evapi:message-received
>> - Continue Call processing
>>
>> Sep  5 19:16:48 ire-lab-kamailio1 kamailio[457395]: INFO:
>> {1757092608.169816 457395 1 1 OPTIONS 123} <script>: EVAPIRESPONSE -
>> Resuming INVITE processing with index 2825 label 1816929401
>>
>> Sep  5 19:16:48 ire-lab-kamailio1 kamailio[457395]: INFO:
>> {1757092608.169829 457395 1 1 OPTIONS 123} <script>: EVAPIRESPONSE - JSON :
>> {"action": "CALL_REJECT", "call_id": "
>> [email protected]:5060", "reject":
>> {"error_code": 480, "error_text": "some text"}}
>>
>> Sep  5 19:16:48 ire-lab-kamailio1 kamailio[457395]: INFO:
>> {1757092608.169998 457395 1 1 OPTIONS 123} <script>: EVAPIRESPONSE -
>> CALL_REJECT with 480 - some text
>>
>> Sep  5 19:16:48 ire-lab-kamailio1 kamailio[457395]: INFO:
>> {1757092608.170253 457395 1 1 OPTIONS 123} <script>: REPLY_SAFE - replying
>> with send_reply
>>
>>
>>
>>
>>
>> And nothing helps is found in logs.
>>
>>
>>
>> The goal is to send a custom SIP error and message depending if the
>> error_code and error_text is specified. If not, then the message received
>> from egress endpoint should be forwarded to the ingress endpoint.
>>
>> I just can't understand why the response is always SIP 503.
>>
>>
>>
>> Here is a SIP trace:
>>
>>
>>
>>
>>
>> Any suggestions?
>>
>>
>>
>> Thanks in advance.
>>
>>
>>
>> Atenciosamente / Kind Regards / Cordialement / Un saludo,
>>
>>
>>
>> *Sérgio Charrua*
>>
>>
>>
>

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