UDH Support on OpenSMPPBox

Dear Users,

Greetings!

Just like to consult if our Opensmppbox service supports Apple type Push
Notification such as imessage and facetime? I have seen the correct UDH on
the PDU however I found a - maybe an error that I hope you can help check.
I'm sharing here the PDU captured:
==============================================================
DEBUG: SMPP: Got PDU:
DEBUG: SMPP PDU 0x7f1c10001270 dump:
DEBUG:   type_name: submit_sm
DEBUG:   command_id: 4 = 0x00000004
DEBUG:   command_status: 0 = 0x00000000
DEBUG:   sequence_number: 128203 = 0x0001f4cb
DEBUG:   service_type: NULL
DEBUG:   source_addr_ton: 1 = 0x00000001
DEBUG:   source_addr_npi: 1 = 0x00000001
DEBUG:   source_addr: "xxxxxxxxxxxx"
DEBUG:   dest_addr_ton: 1 = 0x00000001
DEBUG:   dest_addr_npi: 1 = 0x00000001
DEBUG:   destination_addr: "xxxxxxxxxxxx"
DEBUG:   esm_class: 67 = 0x00000043
DEBUG:   protocol_id: 0 = 0x00000000
DEBUG:   priority_flag: 0 = 0x00000000
DEBUG:   schedule_delivery_time: NULL
DEBUG:   validity_period: NULL
DEBUG:   registered_delivery: 1 = 0x00000001
DEBUG:   replace_if_present_flag: 0 = 0x00000000
DEBUG:   data_coding: 4 = 0x00000004
DEBUG:   sm_default_msg_id: 0 = 0x00000000
DEBUG:   sm_length: 90 = 0x0000005a
DEBUG:   short_message:
DEBUG:    Octet string at 0x7f1c100014d0:
DEBUG:      len:  90
DEBUG:      size: 91
DEBUG:      immutable: 0
DEBUG:      data: *06 05 04 15 79 00 00* 42 66 78 20 32 34 20 73 75
....y..Bfx 24 su
DEBUG:      data: 20 61 69 64 6c 75 65 2e 20 3f 20 32 50 76 3d 20
aidlue. ? 2Pv=
DEBUG:      data: 35 39 31 20 33 2d 38 20 39 2b 52 53 72 33 45 52   591 3-8
9+RSr3ER
DEBUG:      data: 20 38 3b 30 35 20 3d 33 6e 20 45 3d 33 20 34 31    8;05
=3n E=3 41
DEBUG:      data: 30 32 20 37 30 3d 20 31 31 33 73 20 36 42 3b 20   02 70=
113s 6B;
DEBUG:      data: 47 38 34 3b 20 30 35 43 33 2e                     G84;
05C3.
DEBUG:    Octet string dump ends.
DEBUG: SMPP PDU dump ends.
DEBUG: SMPP: UDH length read as 7
*DEBUG: Found unknown IEI 5 with length 4*
DEBUG: UDH was present, but no reference to multipart SMSs
DEBUG: Msg object at 0x7f1c10001a90:
DEBUG:  type: sms
DEBUG:  sms.sender:
DEBUG:  Octet string at 0x7f1c1000xxxx:
DEBUG:    len:  13
DEBUG:    size: 1024
DEBUG:    immutable: 0
DEBUG:    data: 2b             +
DEBUG:  Octet string dump ends.
DEBUG:  sms.receiver:
DEBUG:  Octet string at 0x7f1c1000yyyy:
DEBUG:    len:  13
DEBUG:    size: 1024
DEBUG:    immutable: 0
DEBUG:    data: 2b             +
DEBUG:  Octet string dump ends.
DEBUG:  sms.udhdata:
DEBUG:  Octet string at 0x7f1c100022e0:
DEBUG:    len:  7
DEBUG:    size: 8
DEBUG:    immutable: 0
DEBUG:    data: 06 05 04 15 79 00 00                              ....y..
DEBUG:  Octet string dump ends.
DEBUG:  sms.msgdata:
DEBUG:  Octet string at 0x7f1c100014d0:
DEBUG:    len:  83
DEBUG:    size: 91
DEBUG:    immutable: 0
DEBUG:    data: 42 66 78 20 32 34 20 73 75 20 61 69 64 6c 75 65   Bfx 24 su
aidlue
DEBUG:    data: 2e 20 3f 20 32 50 76 3d 20 35 39 31 20 33 2d 38   . ? 2Pv=
591 3-8
DEBUG:    data: 20 39 2b 52 53 72 33 45 52 20 38 3b 30 35 20 3d    9+RSr3ER
8;05 =
DEBUG:    data: 33 6e 20 45 3d 33 20 34 31 30 32 20 37 30 3d 20   3n E=3
4102 70=
DEBUG:    data: 31 31 33 73 20 36 42 3b 20 47 38 34 3b 20 30 35   113s 6B;
G84; 05
DEBUG:    data: 43 33 2e                                          C3.
DEBUG:  Octet string dump ends.
DEBUG:  sms.time: 1552605905
DEBUG:  sms.smsc_id:
DEBUG:  sms.smsc_number:
DEBUG:  sms.foreign_id:
DEBUG:  sms.service:
DEBUG:  Octet string at 0x7f1c100022b0:
DEBUG:    len:  4
DEBUG:    size: 5
DEBUG:    immutable: 0
DEBUG:    data:
DEBUG:  Octet string dump ends.
DEBUG:  sms.account:
DEBUG:  sms.id: e20f497c-cc20-45c2-b989-c9006d828d24
DEBUG:  sms.sms_type: 2
DEBUG:  sms.mclass: -1
DEBUG:  sms.mwi: -1
DEBUG:  sms.coding: 1
DEBUG:  sms.compress: 0
DEBUG:  sms.validity: -1
DEBUG:  sms.deferred: -1
DEBUG:  sms.dlr_mask: 19
DEBUG:  sms.dlr_url:
DEBUG:  sms.pid: 0
DEBUG:  sms.alt_dcs: 0
DEBUG:  sms.rpi: -1
DEBUG:  sms.charset:
DEBUG:  sms.boxc_id:
DEBUG:  Octet string at 0x7f1c10001590:
DEBUG:    len:  4
DEBUG:    size: 5
DEBUG:    immutable: 0
DEBUG:    data:
DEBUG:  Octet string dump ends.
DEBUG:  sms.binfo:
DEBUG:  sms.msg_left: -1
DEBUG:  sms.split_parts: (nil)
DEBUG:  sms.priority: 0
DEBUG:  sms.resend_try: -1
DEBUG:  sms.resend_time: -1
DEBUG:  sms.meta_data:
DEBUG:  Octet string at 0x7f1c10002310:
DEBUG:    len:  6
DEBUG:    size: 1024
DEBUG:    immutable: 0
DEBUG:    data: 3f 73 6d 70 70 3f                                 ?smpp?
DEBUG:  Octet string dump ends.
=================================================================
Setup Info:
Kannel bearerbox version `1.4.5'
Libxml version 2.9.3
Opensmppbox svn Revision: 86
OS : Ubuntu 16.04
==================================================================

Hoping someone can take a look if indeed the "unknown IEI" is an error or
not.

Thanks in advance.

Regards,

Garz