Inverted Exclamation mark and question mark issue.

Hello Users,

I’m having an issue with sending both inverted exclamation mark (¡) and inverted question mark (¿) , it seems like it was converted to B! and B? instead.

Tried with all below parameter but none working except for UCS-2 which I want to avoid.

curl "http://localhost:13017/cgi-bin/sendsms?username=smsSMPP2&password=smsPass&from=68888&to=60113******&text=¿"  Result : B?
curl "http://localhost:13017/cgi-bin/sendsms?username=smsSMPP2&password=smsPass&from=68888&to=60113******&text=%C2%BF" Result :B?
curl "http://localhost:13017/cgi-bin/sendsms?username=smsSMPP2&password=smsPass&from=68888&to=60113******&text=¿&coding=0&alt-dcs=1" Result : ‘
curl "http://localhost:13017/cgi-bin/sendsms?username=smsSMPP2&password=smsPass&from=68888&to=60113******&text=%C2%BF&coding=0&alt-dcs=1" Result : ‘
curl "http://localhost:13017/cgi-bin/sendsms?username=smsSMPP2&password=smsPass&from=68888&to=60113******&text=¿&coding=0&alt-dcs=0" Result : B?
curl "http://localhost:13017/cgi-bin/sendsms?username=smsSMPP2&password=smsPass&from=68888&to=60113******&text=%C2%BF&coding=0&alt-dcs=0" Result : B?
curl "http://localhost:13017/cgi-bin/sendsms?username=smsSMPP2&password=smsPass&from=68888&to=60113******&text=¿&coding=0&charset=ISO-8859-1&alt-dcs=1" Result : ?’
curl "http://localhost:13017/cgi-bin/sendsms?username=smsSMPP2&password=smsPass&from=68888&to=60113******&text=¿&coding=0&charset=ISO-8859-1&alt-dcs=1" Result : ?’

Tried with charset UTF-8 and ASCII, but same with same result. Please advise what else can be done to get this working?

Config:

group = core
admin-port = 13005
smsbox-port = 13007
sms-resend-retry = 10
admin-password = admin
box-deny-ip = "*.*.*.*"
box-allow-ip = ""
access-log = /opt/kannel/smpp_access.log
access-log-format = "[SMSC:%i] [from:%p] [to:%P] [msg:%L:%b] [FID:%F]"
store-type = file
store-location = "/opt/kannel/smpp.store"
store-dump-freq = 100

group = smsbox
bearerbox-host = 127.0.0.1
sendsms-port = 13017
http-request-retry = 3
http-queue-delay = 5
reply-couldnotfetch = "Please wait"
log-file = "/opt/kannel/smsbox/smsbox.log"
log-level = 0

group = smsc
smsc = smpp
smsc-id = smppConnection2
allowed-smsc-id = "smppConnection2"
host =
port =
system-type = ""
address-range = "1234"
smsc-username = ""
smsc-password = ""
source-addr-ton = 0
source-addr-npi = 1
dest-addr-ton = 1
dest-addr-npi = 1
interface-version = 52
throughput = 15
alt-charset = "utf-8"
connection-timeout = 60
max-pending-submits = 10
enquire-link-interval = 20
transceiver-mode = 0
log-file = "/opt/kannel/bearerbox/debug.log"
log-level = 0
reconnect-delay = 2

group = sendsms-user
username = smsSMPP2
password = smsPass
max-messages  = 10
concatenation = true
default-smsc = smppConnection2

group = sms-service
keyword = default
accepted-smsc = smppConnection2
get-url = "
max-messages = 0
  concatenation = true