Re: Call routing via SIP trunks to CMS

jeff.mayers.ctr · ‎07-09-2018

Hey guys,

I installed a CUBE in a DMZ that terminates 2 SIP trunks. One from the outside and one that registers to our internal CUCM 10.5. Voice calls from the outside to inside and vice-versa work just fine. From our CUCM cluster there is another SIP trunk that connects to our CMS conferencing box. I can see calls hit the CMS box from the outside customer except the call lasts one sec as they get one ring, then nothing. Our CMS box shows outgoing audio but there is no incoming audio. Call routing here is a mystery as it appears the SIP handshake takes place but then there is no audio. The customer does not hear the outgoing message to enter in a meeting ID or PIN. The subnets are wide open so there should not be an ACL issue. We have set the codecs to match all the way through except still,. no audio.

Any thoughts would be appreciated.

Thanks,

Dennis Mink · ‎07-09-2018

can you add a SIP trace of a failing call or add a debug ccsip message output into the post for analysis/

cheers

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jeff.mayers.ctr · ‎07-11-2018

Sorry for the delay. I had to scrub the info.

Here is the "debug ccsip messages" output when the call is made with one ring and then no audio.

Jul 11 16:43:09.544: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:

Received:

INVITE sip:xxxxx@xxx.xxx.xxx.xxx:5060 SIP/2.0

Via: SIP/2.0/UDP xxx.xxx.xxx.xxx:5060;branch=z9hG4bK-d8754z-305bc80b4b515246-1---d8754z-;rport

Max-Forwards: 70

Contact: <sip:xxx.xxx.xxx.xxx:5060>

To: <sip:xxxxx@xxx.xxx.xxx.xxx:5060>

From: "xxxxxxxxxx"<sip:xxx.xxx.xxx.xxx:5060>;tag=4a18817e

Call-ID: YmI4NzdiZjYxMGM4ODI0ZGNjODU2NzJhNmQ4NWNhYzA.

CSeq: 1 INVITE

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

Content-Type: application/sdp

Supported: replaces

User-Agent: 3CXPhoneSystem 12.5.44288.1005 (40218)

Content-Length: 210

Remote-Party-ID: "xxxxxxxxxx"<sip:xxxxxxxxxx@xxx.xxx.xxx.xxx:5060>;party=calling

v=0

o=3cxPS 352321536000 545695727617 IN IP4 xxx.xxx.xxx.xxx

s=3cxPS Audio call

c=IN IP4 xxx.xxx.xxx.xxx

t=0 0

m=audio 17326 RTP/AVP 0 101

a=rtpmap:0 PCMU/8000

a=rtpmap:101 telephone-event/8000

a=sendrecv

Jul 11 16:43:09.547: //179834/53FA4D0D8EF7/SIP/Msg/ccsipDisplayMsg:

Sent:

SIP/2.0 100 Trying

Via: SIP/2.0/UDP xxx.xxx.xxx.xxx:5060;branch=z9hG4bK-d8754z-305bc80b4b515246-1---d8754z-;rport

From: "xxxxxxxxxx"<sip:xxx.xxx.xxx.xxx:5060>;tag=4a18817e

To: <sip:xxxxx@xxx.xxx.xxx.xxx:5060>

Date: Wed, 11 Jul 2018 16:43:09 ZULU

Call-ID: YmI4NzdiZjYxMGM4ODI0ZGNjODU2NzJhNmQ4NWNhYzA.

CSeq: 1 INVITE

Allow-Events: kpml, telephone-event

Server: Cisco-SIPGateway/IOS-15.5.3.S7b

Content-Length: 0

Jul 11 16:43:09.547: //179835/53FA4D0D8EF7/SIP/Msg/ccsipDisplayMsg:

Sent:

INVITE sip:xxxxx@xxx.xxx.xxx.xxx SIP/2.0

Via: SIP/2.0/UDP xxx.xxx.xxx.xxx:5060;branch=z9hG4bK9B12389

Remote-Party-ID: "xxxxxxxxxx" <sip:xxxxxxxxxx@xxx.xxx.xxx.xxx>;party=calling;screen=no;privacy=off

From: "xxxxxxxxxx" <sip:xxxxxxxxxx@xxx.xxx.xxx.xxx>;tag=D876A7FE-1EA6

To: <sip:xxxxx@xxx.xxx.xxx.xxx>

Date: Wed, 11 Jul 2018 16:43:09 ZULU

Call-ID: 53FA9B21-846011E8-8EFDAE67-101A1BFB@xxx.xxx.xxx.xxx

Supported: 100rel,timer,resource-priority,replaces,sdp-anat

Min-SE: 1800

Cisco-Guid: 1408912653-2220888552-2398596711-0270146555

User-Agent: Cisco-SIPGateway/IOS-15.5.3.S7b

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

CSeq: 101 INVITE

Timestamp: 1531327389

Contact: <sip:xxxxxxxxxx@xxx.xxx.xxx.xxx:5060>

Call-Info: <sip:xxx.xxx.xxx.xxx:5060>;method="NOTIFY;Event=telephone-event;Duration=2000"

Expires: 180

Allow-Events: kpml, telephone-event

Max-Forwards: 69

Content-Type: application/sdp

Content-Disposition: session;handling=required

Content-Length: 245

v=0

o=CiscoSystemsSIP-GW-UserAgent 8434 65 IN IP4 xxx.xxx.xxx.xxx

s=SIP Call

c=IN IP4 xxx.xxx.xxx.xxx

t=0 0

m=audio 10792 RTP/AVP 0 101

c=IN IP4 xxx.xxx.xxx.xxx

a=rtpmap:0 PCMU/8000

a=rtpmap:101 telephone-event/8000

a=fmtp:101 0-16

a=ptime:20

Jul 11 16:43:09.552: //179835/53FA4D0D8EF7/SIP/Msg/ccsipDisplayMsg:

Received:

SIP/2.0 100 Trying

Via: SIP/2.0/UDP xxx.xxx.xxx.xxx:5060;branch=z9hG4bK9B12389

From: "xxxxxxxxxx" <sip:xxxxxxxxxx@xxx.xxx.xxx.xxx>;tag=D876A7FE-1EA6

To: <sip:xxxxx@xxx.xxx.xxx.xxx>

Date: Wed, 11 Jul 2018 16:43:09 GMT

Call-ID: 53FA9B21-846011E8-8EFDAE67-101A1BFB@xxx.xxx.xxx.xxx

CSeq: 101 INVITE

Allow-Events: presence

Content-Length: 0

Jul 11 16:43:09.560: //179835/53FA4D0D8EF7/SIP/Msg/ccsipDisplayMsg:

Received:

SIP/2.0 180 Ringing

Via: SIP/2.0/UDP xxx.xxx.xxx.xxx:5060;branch=z9hG4bK9B12389

From: "xxxxxxxxxx" <sip:xxxxxxxxxx@xxx.xxx.xxx.xxx>;tag=D876A7FE-1EA6

To: <sip:xxxxx@xxx.xxx.xxx.xxx>;tag=13060056~95911e6e-0c62-4a67-ae9d-0a3872f81d61-48764415

Date: Wed, 11 Jul 2018 16:43:09 GMT

Call-ID: 53FA9B21-846011E8-8EFDAE67-101A1BFB@xxx.xxx.xxx.xxx

CSeq: 101 INVITE

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

Allow-Events: presence

Server: Cisco-CUCM10.5

Call-Info: <urn:x-cisco-remotecc:callinfo>;x-cisco-video-traffic-class=DESKTOP

Supported: X-cisco-srtp-fallback

Supported: Geolocation

P-Preferred-Identity: <sip:xxxxxx4100@xxx.xxx.xxx.xxx>

Remote-Party-ID: <sip:xxxxxx4100@xxx.xxx.xxx.xxx>;party=called;screen=no;privacy=off

Contact: <sip:xxxxx@xxx.xxx.xxx.xxx:5060>

Content-Length: 0

Jul 11 16:43:09.560: //179834/53FA4D0D8EF7/SIP/Msg/ccsipDisplayMsg:

Sent:

SIP/2.0 180 Ringing

Via: SIP/2.0/UDP xxx.xxx.xxx.xxx:5060;branch=z9hG4bK-d8754z-305bc80b4b515246-1---d8754z-;rport

From: "xxxxxxxxxx"<sip:xxx.xxx.xxx.xxx:5060>;tag=4a18817e

To: <sip:xxxxx@xxx.xxx.xxx.xxx:5060>;tag=D876A80C-1DDD

Date: Wed, 11 Jul 2018 16:43:09 ZULU

Call-ID: YmI4NzdiZjYxMGM4ODI0ZGNjODU2NzJhNmQ4NWNhYzA.

CSeq: 1 INVITE

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

Allow-Events: kpml, telephone-event

Remote-Party-ID: <sip:xxxxxx4100@xxx.xxx.xxx.xxx>;party=called;screen=no;privacy=off

Contact: <sip:xxxxx@xxx.xxx.xxx.xxx:5060>

Server: Cisco-SIPGateway/IOS-15.5.3.S7b

Content-Length: 0

Jul 11 16:43:09.568: //179835/53FA4D0D8EF7/SIP/Msg/ccsipDisplayMsg:

Received:

SIP/2.0 200 OK

Via: SIP/2.0/UDP xxx.xxx.xxx.xxx:5060;branch=z9hG4bK9B12389

From: "xxxxxxxxxx" <sip:xxxxxxxxxx@xxx.xxx.xxx.xxx>;tag=D876A7FE-1EA6

To: <sip:xxxxx@xxx.xxx.xxx.xxx>;tag=13060056~95911e6e-0c62-4a67-ae9d-0a3872f81d61-48764415

Date: Wed, 11 Jul 2018 16:43:09 GMT

Call-ID: 53FA9B21-846011E8-8EFDAE67-101A1BFB@xxx.xxx.xxx.xxx

CSeq: 101 INVITE

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

Allow-Events: presence

Supported: replaces

Server: Cisco-CUCM10.5

Call-Info: <urn:x-cisco-remotecc:callinfo>;x-cisco-video-traffic-class=DESKTOP

Supported: X-cisco-srtp-fallback

Supported: Geolocation

Session-Expires: 1800;refresher=uas

Require: timer

P-Preferred-Identity: <sip:xxxxxx4100@xxx.xxx.xxx.xxx>

Remote-Party-ID: <sip:xxxxxx4100@xxx.xxx.xxx.xxx>;party=called;screen=no;privacy=off

Contact: <sip:xxxxx@xxx.xxx.xxx.xxx:5060>;isFocus

Content-Type: application/sdp

Content-Length: 225

v=0

o=CiscoSystemsCCM-SIP 13060056 1 IN IP4 xxx.xxx.xxx.xxx

s=SIP Call

c=IN IP4 xxx.xxx.xxx.xxx

b=TIAS:64000

b=AS:64

t=0 0

m=audio 51808 RTP/AVP 0 101

a=rtpmap:0 PCMU/8000

a=rtpmap:101 telephone-event/8000

a=fmtp:101 0-15

Jul 11 16:43:09.569: //179835/53FA4D0D8EF7/SIP/Msg/ccsipDisplayMsg:

Sent:

ACK sip:xxxxx@xxx.xxx.xxx.xxx:5060 SIP/2.0

Via: SIP/2.0/UDP xxx.xxx.xxx.xxx:5060;branch=z9hG4bK9B21650

From: "xxxxxxxxxx" <sip:xxxxxxxxxx@xxx.xxx.xxx.xxx>;tag=D876A7FE-1EA6

To: <sip:xxxxx@xxx.xxx.xxx.xxx>;tag=13060056~95911e6e-0c62-4a67-ae9d-0a3872f81d61-48764415

Date: Wed, 11 Jul 2018 16:43:09 ZULU

Call-ID: 53FA9B21-846011E8-8EFDAE67-101A1BFB@xxx.xxx.xxx.xxx

Max-Forwards: 70

CSeq: 101 ACK

Allow-Events: kpml, telephone-event

Content-Length: 0

Jul 11 16:43:09.570: //179834/53FA4D0D8EF7/SIP/Msg/ccsipDisplayMsg:

Sent:

SIP/2.0 200 OK

Via: SIP/2.0/UDP xxx.xxx.xxx.xxx:5060;branch=z9hG4bK-d8754z-305bc80b4b515246-1---d8754z-;rport

From: "xxxxxxxxxx"<sip:xxx.xxx.xxx.xxx:5060>;tag=4a18817e

To: <sip:xxxxx@xxx.xxx.xxx.xxx:5060>;tag=D876A80C-1DDD

Date: Wed, 11 Jul 2018 16:43:09 ZULU

Call-ID: YmI4NzdiZjYxMGM4ODI0ZGNjODU2NzJhNmQ4NWNhYzA.

CSeq: 1 INVITE

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

Allow-Events: kpml, telephone-event

Remote-Party-ID: <sip:xxxxxx4100@xxx.xxx.xxx.xxx>;party=called;screen=no;privacy=off

Contact: <sip:xxxxx@xxx.xxx.xxx.xxx:5060>

Supported: replaces

Supported: sdp-anat

Server: Cisco-SIPGateway/IOS-15.5.3.S7b

Supported: timer

Content-Type: application/sdp

Content-Disposition: session;handling=required

Content-Length: 194

v=0

o=CiscoSystemsSIP-GW-UserAgent 8624 8068 IN IP4 xxx.xxx.xxx.xxx

s=SIP Call

c=IN IP4 xxx.xxx.xxx.xxx

t=0 0

m=audio 10790 RTP/AVP 0

c=IN IP4 xxx.xxx.xxx.xxx

a=rtpmap:0 PCMU/8000

a=ptime:20

Jul 11 16:43:09.679: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:

Received:

ACK sip:xxxxx@xxx.xxx.xxx.xxx:5060 SIP/2.0

Via: SIP/2.0/UDP xxx.xxx.xxx.xxx:5060;branch=z9hG4bK-d8754z-231eca71ef5e0b11-1---d8754z-;rport

Max-Forwards: 70

Contact: <sip:xxx.xxx.xxx.xxx:5060>

To: <sip:xxxxx@xxx.xxx.xxx.xxx:5060>;tag=D876A80C-1DDD

From: "xxxxxxxxxx"<sip:xxx.xxx.xxx.xxx:5060>;tag=4a18817e

Call-ID: YmI4NzdiZjYxMGM4ODI0ZGNjODU2NzJhNmQ4NWNhYzA.

CSeq: 1 ACK

User-Agent: 3CXPhoneSystem 12.5.44288.1005 (40218)

Content-Length: 0

Jul 11 16:43:23.566: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:

Received:

BYE sip:xxxxxxxxxx@xxx.xxx.xxx.xxx:5060 SIP/2.0

Via: SIP/2.0/UDP xxx.xxx.xxx.xxx:5060;branch=z9hG4bK70423233d60e8c

From: <sip:xxxxx@xxx.xxx.xxx.xxx>;tag=13060056~95911e6e-0c62-4a67-ae9d-0a3872f81d61-48764415

To: "xxxxxxxxxx" <sip:xxxxxxxxxx@xxx.xxx.xxx.xxx>;tag=D876A7FE-1EA6

Date: Wed, 11 Jul 2018 16:43:09 GMT

Call-ID: 53FA9B21-846011E8-8EFDAE67-101A1BFB@xxx.xxx.xxx.xxx

User-Agent: Cisco-CUCM10.5

Max-Forwards: 70

CSeq: 101 BYE

Reason: Q.850;cause=16

Content-Length: 0

Jul 11 16:43:23.567: //179834/53FA4D0D8EF7/SIP/Msg/ccsipDisplayMsg:

Sent:

BYE sip:xxx.xxx.xxx.xxx:5060 SIP/2.0

Via: SIP/2.0/UDP xxx.xxx.xxx.xxx:5060;branch=z9hG4bK9B31CA7

From: <sip:xxxxx@xxx.xxx.xxx.xxx:5060>;tag=D876A80C-1DDD

To: "xxxxxxxxxx"<sip:xxx.xxx.xxx.xxx:5060>;tag=4a18817e

Date: Wed, 11 Jul 2018 16:43:09 ZULU

Call-ID: YmI4NzdiZjYxMGM4ODI0ZGNjODU2NzJhNmQ4NWNhYzA.

User-Agent: Cisco-SIPGateway/IOS-15.5.3.S7b

Timestamp: 1531327403

CSeq: 101 BYE

Reason: Q.850;cause=16

Max-Forwards: 70

Content-Length: 0

Jul 11 16:43:23.567: //179835/53FA4D0D8EF7/SIP/Msg/ccsipDisplayMsg:

Sent:

SIP/2.0 200 OK

Via: SIP/2.0/UDP xxx.xxx.xxx.xxx:5060;branch=z9hG4bK70423233d60e8c

From: <sip:xxxxx@xxx.xxx.xxx.xxx>;tag=13060056~95911e6e-0c62-4a67-ae9d-0a3872f81d61-48764415

To: "xxxxxxxxxx" <sip:xxxxxxxxxx@xxx.xxx.xxx.xxx>;tag=D876A7FE-1EA6

Date: Wed, 11 Jul 2018 16:43:23 ZULU

Call-ID: 53FA9B21-846011E8-8EFDAE67-101A1BFB@xxx.xxx.xxx.xxx

Server: Cisco-SIPGateway/IOS-15.5.3.S7b

CSeq: 101 BYE

Reason: Q.850;cause=16

Content-Length: 0

Thank you,

jeff.mayers.ctr · ‎07-11-2018

Hey guys,

It appears problem solved. During troubleshooting, I witnessed an ACL blocking an IP that did not show up in the past. Once it was accounted for, traffic traversed as expected. The IP address was the CMS box we were trying to call into.

Cheers,