Hi All,

I need some help regarding SIP SUBSCRIBE message received on FreeSwitch Server.

Following is the Message Sequence event observed:

401 Unauthorized ….. (Sent by FS)

200 OK .......................(Sent by FS)

SUBSCRIBE ......................................(Received by FS)

489 Bad Event ............(Sent by FS)

PUBLISH ..........................................(Received by FS)

489 Bad Event ............(Sent by FS)

SUBSCRIBE ......................................(Received by FS)

200 OK ........................(Sent by FS)

In above sequence please note that message no. 5 – SIP SUBSCRIBE – and message no. 7 – SIP PUBLISH – have Content-Type as multipart/mixed.

For my application purpose, I need to use the info received in these messages and should respond back to client accordingly.

Can someone help me to point out exact places where these messages are being processed?

Following is the SIP Trace of transaction:

freeswitch@shantala-Lenovo-G50-80> recv 883 bytes from udp/[10.196.23.129]:41196 at 14:42:12.589859:

------------------------------------------------------------------------

Via: SIP/2.0/UDP 10.196.23.129:41196;branch=z9hG4bK-479585552;rport

From: <sip:mcx.iitb-333.iitb@10.198.17.13>;tag=461418457

To: <sip:mcx.iitb-333.iitb@10.198.17.13>

Contact: <sip:mcx.iitb-333.iitb@10.196.23.129:41196;transport=udp>;expires=1700;audio;+g.3gpp.icsi-ref="urn%3Aurn-7%3A3gpp-service.ims.icsi.mcptt";+g.3gpp.cs-voice;+g.3gpp.mcptt

Call-ID: 9b288895-6627-9abe-9d0e-cd99fdf87543

CSeq: 160641516 REGISTER

Content-Length: 0

Max-Forwards: 70

Authorization: Digest username="mcx.iitb-333.iitb",realm="10.198.17.13",nonce="",uri="sip:10.198.17.13",response=""

Allow: INVITE, ACK, CANCEL, BYE, MESSAGE, OPTIONS, NOTIFY, PRACK, UPDATE, REFER

Privacy: none

P-Access-Network-Info: ADSL;utran-cell-id-3gpp=00000000

User-Agent: MCOP CLIENT MCPTT1.0 /v 0.1

P-Preferred-Identity: <sip:mcx.iitb-333.iitb@10.198.17.13>

Supported: path

------------------------------------------------------------------------

send 668 bytes to udp/[10.196.23.129]:41196 at 14:42:12.590640:

------------------------------------------------------------------------

SIP/2.0 401 Unauthorized

Via: SIP/2.0/UDP 10.196.23.129:41196;branch=z9hG4bK-479585552;rport=41196

From: <sip:mcx.iitb-333.iitb@10.198.17.13>;tag=461418457

To: <sip:mcx.iitb-333.iitb@10.198.17.13>;tag=KFNj23y3mNSmF

Call-ID: 9b288895-6627-9abe-9d0e-cd99fdf87543

CSeq: 160641516 REGISTER

User-Agent: FreeSWITCH-mod_sofia/1.6.20+git~20190620T062758Z~11af54ff65~64bit

Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE

Supported: timer, path, replaces

WWW-Authenticate: Digest realm="10.198.17.13", nonce="76ac9099-06ef-49be-b966-9c21325cf798", stale=true, algorithm=MD5, qop="auth"

Content-Length: 0

------------------------------------------------------------------------

recv 1029 bytes from udp/[10.196.23.129]:41196 at 14:42:12.598409:

------------------------------------------------------------------------

Via: SIP/2.0/UDP 10.196.23.129:41196;branch=z9hG4bK-1467903459;rport

From: <sip:mcx.iitb-333.iitb@10.198.17.13>;tag=461418457

To: <sip:mcx.iitb-333.iitb@10.198.17.13>

Contact: <sip:mcx.iitb-333.iitb@10.196.23.129:41196;transport=udp>;expires=1700;audio;+g.3gpp.icsi-ref="urn%3Aurn-7%3A3gpp-service.ims.icsi.mcptt";+g.3gpp.cs-voice;+g.3gpp.mcptt

Call-ID: 9b288895-6627-9abe-9d0e-cd99fdf87543

CSeq: 160641517 REGISTER

Content-Length: 0

Max-Forwards: 70

Authorization: Digest username="mcx.iitb-333.iitb",realm="10.198.17.13",nonce="76ac9099-06ef-49be-b966-9c21325cf798",uri="sip:10.198.17.13",response="51acffef02d3a6b73c78aec6b26dcec2",algorithm=MD5,cnonce="8e1cf72f4cd5fd37a6ccbb1b821eeb94",qop=auth,nc=00000001

Allow: INVITE, ACK, CANCEL, BYE, MESSAGE, OPTIONS, NOTIFY, PRACK, UPDATE, REFER

Privacy: none

P-Access-Network-Info: ADSL;utran-cell-id-3gpp=00000000

User-Agent: MCOP CLIENT MCPTT1.0 /v 0.1

P-Preferred-Identity: <sip:mcx.iitb-333.iitb@10.198.17.13>

Supported: path

------------------------------------------------------------------------

send 645 bytes to udp/[10.196.23.129]:41196 at 14:42:12.600354:

------------------------------------------------------------------------

SIP/2.0 200 OK

Via: SIP/2.0/UDP 10.196.23.129:41196;branch=z9hG4bK-1467903459;rport=41196

From: <sip:mcx.iitb-333.iitb@10.198.17.13>;tag=461418457

To: <sip:mcx.iitb-333.iitb@10.198.17.13>;tag=mreB4yF7HyF7a

Call-ID: 9b288895-6627-9abe-9d0e-cd99fdf87543

CSeq: 160641517 REGISTER

Contact: <sip:mcx.iitb-333.iitb@10.196.23.129:41196;transport=udp>;expires=1700

Date: Mon, 01 Jul 2019 09:12:12 GMT

User-Agent: FreeSWITCH-mod_sofia/1.6.20+git~20190620T062758Z~11af54ff65~64bit

Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE

Supported: timer, path, replaces

Content-Length: 0

------------------------------------------------------------------------

recv 1767 bytes from udp/[10.196.23.129]:41196 at 14:42:12.682238:

------------------------------------------------------------------------

SUBSCRIBE sip:mcptt-server-orig-part.organization.org SIP/2.0

Via: SIP/2.0/UDP 10.196.23.129:41196;branch=z9hG4bK-1600282236;rport

From: <sip:mcx.iitb-333.iitb@10.198.17.13>;tag=695831546

To: <sip:mcptt-server-orig-part.organization.org>

Contact: <sip:mcx.iitb-333.iitb@10.196.23.129:41196;transport=udp>;+g.3gpp.icsi-ref="urn%3Aurn-7%3A3gpp-service.ims.icsi.mcptt";+g.3gpp.mcptt

Call-ID: 22b6445e-982e-3034-6046-93ac75341206

CSeq: 401808965 SUBSCRIBE

Expires: 3600

Content-Type: multipart/mixed;boundary=66f2554f-ba0c-fcf8-f9df-6c5375345642

Content-Length: 808

Max-Forwards: 70

Allow: INVITE, ACK, CANCEL, BYE, MESSAGE, OPTIONS, NOTIFY, PRACK, UPDATE, REFER

Privacy: none

P-Access-Network-Info: ADSL;utran-cell-id-3gpp=00000000

User-Agent: MCOP CLIENT MCPTT1.0 /v 0.1

P-Preferred-Identity: <sip:mcx.iitb-333.iitb@10.198.17.13>

P-Preferred-Service: urn:urn-7:3gpp-service.ims.icsi.mcptt

Accept: application/xcap-diff+xml

Event: xcap-diff

--66f2554f-ba0c-fcf8-f9df-6c5375345642

Content-Type: application/vnd.3gpp.mcptt-info+xml

<mcptt-Params>

<mcptt-client-id type="Normal">

</mcptt-client-id>

<mcptt-request-uri type="Normal">

</mcptt-request-uri>

</mcptt-Params>

</mcpttinfo>

--66f2554f-ba0c-fcf8-f9df-6c5375345642

Content-Type: application/resource-lists+xml

<resource-lists xmlns="urn:ietf:params:xml:ns:resource-lists" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">

<list>

</list>

</resource-lists>

--66f2554f-ba0c-fcf8-f9df-6c5375345642--

------------------------------------------------------------------------

send 715 bytes to udp/[10.196.23.129]:41196 at 14:42:12.682421:

------------------------------------------------------------------------

SIP/2.0 489 Bad Event

Via: SIP/2.0/UDP 10.196.23.129:41196;branch=z9hG4bK-1600282236;rport=41196

From: <sip:mcx.iitb-333.iitb@10.198.17.13>;tag=695831546

To: <sip:mcptt-server-orig-part.organization.org>;tag=N1735S0aF75Sp

Call-ID: 22b6445e-982e-3034-6046-93ac75341206

CSeq: 401808965 SUBSCRIBE

User-Agent: FreeSWITCH-mod_sofia/1.6.20+git~20190620T062758Z~11af54ff65~64bit

Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE

Supported: timer, path, replaces

Allow-Events: talk, hold, conference, presence, as-feature-event, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer

Content-Length: 0

------------------------------------------------------------------------

recv 1746 bytes from udp/[10.196.23.129]:41196 at 14:42:12.724245:

------------------------------------------------------------------------

PUBLISH sip:mcptt-server-orig-part.organization.org SIP/2.0

Via: SIP/2.0/UDP 10.196.23.129:41196;branch=z9hG4bK-1262365214;rport

From: <sip:mcx.iitb-333.iitb@10.198.17.13>;tag=572479811

To: <sip:mcptt-server-orig-part.organization.org>

Contact: <sip:mcx.iitb-333.iitb@10.196.23.129:41196;transport=udp>;+g.3gpp.icsi-ref="urn%3Aurn-7%3A3gpp-service.ims.icsi.mcptt";+g.3gpp.mcptt

Call-ID: 44efbb6c-0cb8-bcb9-eda8-34e6fe929c0c

CSeq: 460922957 PUBLISH

Expires: 4294967295

Content-Type: multipart/mixed;boundary=ee899bdf-2023-5552-60d6-aa7ed89cc134

Content-Length: 817

Max-Forwards: 70

Allow: INVITE, ACK, CANCEL, BYE, MESSAGE, OPTIONS, NOTIFY, PRACK, UPDATE, REFER

Privacy: none

P-Access-Network-Info: ADSL;utran-cell-id-3gpp=00000000

User-Agent: MCOP CLIENT MCPTT1.0 /v 0.1

P-Preferred-Identity: <sip:mcx.iitb-333.iitb@10.198.17.13>

P-Preferred-Service: urn:urn-7:3gpp-service.ims.icsi.mcptt

Event: poc-settings

--ee899bdf-2023-5552-60d6-aa7ed89cc134

Content-Type: application/vnd.3gpp.mcptt-info+xml

<mcptt-Params>

<mcptt-client-id type="Normal">

</mcptt-client-id>

<mcptt-request-uri type="Normal">

</mcptt-request-uri>

</mcptt-Params>

</mcpttinfo>

--ee899bdf-2023-5552-60d6-aa7ed89cc134

Content-Type: application/poc-settings+xml

<poc-settings xmlns="urn:oma:params:xml:ns:poc:poc-settings">

<am-settings>

<answer-mode>automatic</answer-mode>

</am-settings>

</entity>

</poc-settings>

--ee899bdf-2023-5552-60d6-aa7ed89cc134--

------------------------------------------------------------------------

send 713 bytes to udp/[10.196.23.129]:41196 at 14:42:12.724421:

------------------------------------------------------------------------

SIP/2.0 489 Bad Event

Via: SIP/2.0/UDP 10.196.23.129:41196;branch=z9hG4bK-1262365214;rport=41196

From: <sip:mcx.iitb-333.iitb@10.198.17.13>;tag=572479811

To: <sip:mcptt-server-orig-part.organization.org>;tag=pa1v7mHecgvcj

Call-ID: 44efbb6c-0cb8-bcb9-eda8-34e6fe929c0c

CSeq: 460922957 PUBLISH

User-Agent: FreeSWITCH-mod_sofia/1.6.20+git~20190620T062758Z~11af54ff65~64bit

Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE

Supported: timer, path, replaces

Allow-Events: talk, hold, conference, presence, as-feature-event, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer

Content-Length: 0

------------------------------------------------------------------------

recv 1232 bytes from udp/[10.196.23.129]:41196 at 14:42:17.731697:

------------------------------------------------------------------------

SUBSCRIBE sip:mcptt-server-orig-part.organization.org SIP/2.0

Via: SIP/2.0/UDP 10.196.23.129:41196;branch=z9hG4bK-1771073717;rport

From: <sip:mcx.iitb-333.iitb@10.198.17.13>;tag=923465290

To: <sip:mcptt-server-orig-part.organization.org>

Contact: <sip:mcx.iitb-333.iitb@10.196.23.129:41196;transport=udp>;+g.3gpp.icsi-ref="urn%3Aurn-7%3A3gpp-service.ims.icsi.mcptt";+g.3gpp.mcptt

Call-ID: b9de154c-daaa-800c-a993-ee1ec11dcbbe

CSeq: 2013176009 SUBSCRIBE

Expires: 4294967295

Content-Type: application/vnd.3gpp.mcptt-info+xml

Content-Length: 298

Max-Forwards: 70

Allow: INVITE, ACK, CANCEL, BYE, MESSAGE, OPTIONS, NOTIFY, PRACK, UPDATE, REFER

Privacy: none

P-Access-Network-Info: ADSL;utran-cell-id-3gpp=00000000

User-Agent: MCOP CLIENT MCPTT1.0 /v 0.1

P-Preferred-Identity: <sip:mcx.iitb-333.iitb@10.198.17.13>

P-Preferred-Service: urn:urn-7:3gpp-service.ims.icsi.mcptt

Accept: application/pidf+xml

Event: presence

<?xml version="1.0" encoding="UTF-8"?>

<mcptt-Params>

<mcptt-request-uri type="Normal"><mcpttURI>sip:mcx.iitb-333.iitb@10.198.17.13</mcpttURI></mcptt-request-uri>

</mcptt-Params>

</mcpttinfo>

------------------------------------------------------------------------

send 811 bytes to udp/[10.196.23.129]:41196 at 14:42:17.744414:

------------------------------------------------------------------------

SIP/2.0 200 OK

Via: SIP/2.0/UDP 10.196.23.129:41196;branch=z9hG4bK-1771073717;rport=41196

From: <sip:mcx.iitb-333.iitb@10.198.17.13>;tag=923465290

To: <sip:mcptt-server-orig-part.organization.org>;tag=my0OZqHdfUzH

Call-ID: b9de154c-daaa-800c-a993-ee1ec11dcbbe

CSeq: 2013176009 SUBSCRIBE

Contact: <sip:@10.198.17.13:5060>

Expires: 4294967295

User-Agent: FreeSWITCH-mod_sofia/1.6.20+git~20190620T062758Z~11af54ff65~64bit

Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE

Supported: timer, path, replaces

Allow-Events: talk, hold, conference, presence, as-feature-event, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer

Subscription-State: active;expires=4294967295

Content-Length: 0

P.S.: interestingly enough, last SIP SUBSCRIBE message – message #9 – is being processed by sofia_process_dispatch_event(). The previous messages are not.

Thanks

Akshay Patil

e-mail : ahvpatil@gmail.com

Mob. No. : +91-9930166672