Cause code transparency problem

[Maciej Bylica]

Hello,

I am heaving troubles with cause code transparency on Cisco 3800 working as a IP-to-IP gateway.

Call scenario is as follows: A---> Cisco3845 ---> B, while B is responding with Reason header like following:

Reason: Q.850;cause=19 then Cisco is changing cause code to 18, so as a result it is Reason: Q.850;cause=18.

I have header-passing error-pass through command provided in global configuration mode, but without success.

What is true, 16/31/34 cause codes are forwarded transparently, so i have issues only with some of the cause codes.

Could anybody tell me how to configure cause-code transparency?

My IOS is 12.4(24)T3.

Regards,

Maciej.

[Mohammed al Baqari]

Nothing more than this.

voice service voice

sip

header-passing error-pass through

Please share the debugs and lets see.

[nikshah]

Hi Maciej,

Are the parties A and B SIP, if true, this might help

http://www.cisco.com/en/US/docs/ios/voice/cube/configuration/guide/vb-gw-sipsip.html#wp1475564

Regards

Niket

[Maciej Bylica]

Hello,

Here is part of my global config:

voice service voip

  cause-code legacy

h323

sip

  header-passing error-passthru

so refering to what you've said my config is okay

Here are some ccsip messages debugs:

1)

SIP/2.0 480 No Response

Allow: UPDATE,REFER,INFO

Call-ID: E783FC1D-C94F11E1-B20CA0EA-1CB24DE3@ 10.10.10.2

Contact: < 5060="">

CSeq: 101 INVITE

From: <324278129555>;tag=60E389B0-1B3E

Reason: q.850;cause=19

Server: TermGW(gw_sip)

To: <514972111>;tag=00-08181-1a7579d1-063a39312

Via: SIP/2.0/UDP 10.10.10.2:5060;received=10.10.10.2;branch=z9hG4bK1136C61BF3

Content-Length: 0

SIP/2.0 480 Temporarily Not Available

Via: SIP/2.0/UDP  10.10.10.50:5060;branch=z9hG4bK-21B5-12274EF4

From: <324278129555>;tag=11064-AS-1a7579d0-6326cf147

To: <514972111>;tag=60E397E8-871

Date: Mon, 09 Jul 2012 22:54:42 GMT

Call-ID: 11064-AM-1a7579cf-3abcf4484@termos

CSeq: 333740282 INVITE

Allow-Events: telephone-event

Server: Cisco-SIPGateway/IOS-12.x

Reason: Q.850;cause=18

Content-Length: 0

2)

BYE sip:447570143333@10.10.10.3:5060 SIP/2.0

Call-ID: 7588C644-C93611E1-8FC8C10A-CF29DD8D@10.10.10.3

CSeq: 333719471 BYE

From: <519738444>;tag=00-08038-1a75114b-64a767810

Max-Forwards: 29

Reason: q.850;cause=111

To: <447570143333>;tag=603CB0CC-E16

User-Agent: TermGW(gw_sip)

Via: SIP/2.0/UDP  10.10.10.50:5060;branch=z9hG4bK-E5A-12271BDE

Content-Length: 0

BYE sip: 10.10.10.50:5060 SIP/2.0

Via: SIP/2.0/UDP 10.10.10.3:5060;branch=z9hG4bK113AA716E9

From: <519738444>;tag=603CC384-2370

To: <447570143333>;tag=13061-RM-1a751149-320844834

Date: Mon, 09 Jul 2012 19:52:45 GMT

Call-ID: 13061-RH-1a751148-07ca41bc7@termos

User-Agent: Cisco-SIPGateway/IOS-12.x

Max-Forwards: 70

Timestamp: 1341863658

CSeq: 101 BYE

Reason: Q.850;cause=16

Content-Length: 0

3)

SIP/2.0 480 Temporarily Not Available

Allow: UPDATE,REFER,INFO

Call-ID: 464FA3EC-C93711E1-A61CA0EA-1CB24DE3@ 10.10.10.2

Contact: < 5060="">

CSeq: 101 INVITE

From: <34672969355>;tag=604220E4-2BC

Reason: q.850;cause=31

Server: TermGW(gw_sip)

To: <518855888>;tag=00-07882-1a7520b6-4e2cae385

Via: SIP/2.0/UDP 10.10.10.2:5060;received=10.10.10.2;branch=z9hG4bK1132D9151

Content-Length: 0

SIP/2.0 480 Temporarily Not Available

Via: SIP/2.0/UDP  10.10.10.50:5060;branch=z9hG4bK-5A9F-122725A4

From: <34672969355>;tag=16105-JI-1a7520b5-693e47452

To: <518855888>;tag=60422294-E5A

Date: Mon, 09 Jul 2012 19:58:23 GMT

Call-ID: 16105-AM-1a7520b4-09de5d2f0@termos

CSeq: 333721732 INVITE

Allow-Events: telephone-event

Server: Cisco-SIPGateway/IOS-12.x

Reason: Q.850;cause=18

Content-Length: 0

so as you may see cause=19 is changes to cause=18, cause=111 to cause=16, cause=31 to cause=18

Any help please...

[Maciej Bylica]

May this misbehaviour be connected with IOS ver?

[nikshah · Accepted solution]

Hi Maciej,

I have a strong feeling there is something in your IOS or the functionality is not implemented/updated on the CUBE.

I would recommend to have a tac case open and they can have it verified from the BU.

Hope this helps.

Niket

Kindly rate useful posts!!

[Maciej Bylica]

Hi,

Thanks for an answer.

At first i need to buy tac support or try with different IOS version.

Important is that i do have correct configuration.

Thanks again.