UC500 cannot forward calls to external numbers

torbjorn86 · ‎07-08-2014

Hi all,

We have an issue with our (old)UC500, for some reason we cannot forward incoming calls to external numbers. I've tried configuring this on the phones themselves, and directly on the UC500 - but it always results in a busy signal. Internal forwarding works fine, but i.e. forarding calls from an end users extension to a cell phone, will not work.

We have a SIP trunk from a Norwegian provider.

I have been researching this for a week now, but I'm pretty much a Cisco newbie, and CIPT stuff is even more unknown territory.

Any tips on how to proceed? What debug command would be most useful here?

Thanks.

acampbell · ‎07-08-2014

Hi,

UC500 very similar to CME

conf t

!
telephony-service
transfer-pattern .T
call-forward pattern .T
!

Give thisa try

Regards
Alex

Regards, Alex. Please rate useful posts.

moyo oyegunle · ‎07-08-2014

Hello,

Not sure if this is available in UC500 but you should try "Debug ccsip messages" or "Debug ccsip events".It provides SIP tracing.Its likely you are sending wrong digits.

torbjorn86 · ‎07-09-2014

transfer-pattern .T and call-forward pattern .T are actually already enabled.

This is the output from "debug ccsip messages" and events:

000209: Jul  9 18:24:55.627 PST: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:
Sent:
INVITE sip:48268351@trunk.telio.no:5060 SIP/2.0
Via: SIP/2.0/UDP 195.18.163.206:5060;branch=z9hG4bK1E5183A
From: "Inga Sigfusdottir" <sip:22956600@trunk.telio.no>;tag=40D060-2C2
To: <sip:48268351@trunk.telio.no>
Date: Wed, 09 Jul 2014 16:24:55 GMT
Call-ID: 659A737B-6BC11E4-81C5A4C1-25673DD3@195.18.163.206
Supported: 100rel,timer,resource-priority,replaces
Min-SE:  1800
Cisco-Guid: 1704620923-112988644-2176951489-627523027
User-Agent: Cisco-SIPGateway/IOS-12.x
Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY, INFO, REGISTER
CSeq: 101 INVITE
Max-Forwards: 70
Timestamp: 1404923095
Contact: <sip:22956600@195.18.163.206:5060>
Diversion: <sip:610@trunk.telio.no>;privacy=off;reason=unconditional;counter=1;screen=no
Expires: 180
Allow-Events: telephone-event
Content-Type: application/sdp
Content-Disposition: session;handling=required
Content-Length: 273

v=0
o=CiscoSystemsSIP-GW-UserAgent 5248 6130 IN IP4 195.18.163.206
s=SIP Call
c=IN IP4 195.18.163.206
t=0 0
m=audio 18638 RTP/AVP 8 101
c=IN IP4 195.18.163.206
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:20
a=direction:active

000210: Jul  9 18:24:55.627 PST: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:
Received:
SIP/2.0 407 Proxy Authentication Required
Via: SIP/2.0/UDP 195.18.163.206:5060;branch=z9hG4bK1E5183A;rport=5060
From: "Inga Sigfusdottir" <sip:22956600@trunk.telio.no>;tag=40D060-2C2
To: <sip:48268351@trunk.telio.no>;tag=49d3d2ceb0cf6a13610f2ddfc358d59c.a12e
Call-ID: 659A737B-6BC11E4-81C5A4C1-25673DD3@195.18.163.206
CSeq: 101 INVITE
Proxy-Authenticate: Digest realm="trunk.telio.no", nonce="53bd5fc553bd5fbbfd5b4dee73bedc8af7ce791e11ca10f2"
Server: Sip EXpress router (2.1.0-dev21 (i386/linux))
Content-Length: 0
Warning: 392 85.119.136.148:5060 "Noisy feedback tells:  pid=11272 req_src_ip=195.18.163.206 req_src_port=5060 in_uri=sip:48268351@trunk.telio.no:5060 out_uri=sip:48268351@trunk.telio.no:5060 via_cnt==1"

000211: Jul  9 18:24:55.631 PST: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:
Sent:
ACK sip:48268351@trunk.telio.no:5060 SIP/2.0
Via: SIP/2.0/UDP 195.18.163.206:5060;branch=z9hG4bK1E5183A
From: "Inga Sigfusdottir" <sip:22956600@trunk.telio.no>;tag=40D060-2C2
To: <sip:48268351@trunk.telio.no>;tag=49d3d2ceb0cf6a13610f2ddfc358d59c.a12e
Date: Wed, 09 Jul 2014 16:24:55 GMT
Call-ID: 659A737B-6BC11E4-81C5A4C1-25673DD3@195.18.163.206
Max-Forwards: 70
CSeq: 101 ACK
Allow-Events: telephone-event
Content-Length: 0

000212: Jul  9 18:24:55.631 PST: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:
Sent:
INVITE sip:48268351@trunk.telio.no:5060 SIP/2.0
Via: SIP/2.0/UDP 195.18.163.206:5060;branch=z9hG4bK1E6257E
From: "Inga Sigfusdottir" <sip:22956600@trunk.telio.no>;tag=40D060-2C2
To: <sip:48268351@trunk.telio.no>
Date: Wed, 09 Jul 2014 16:24:55 GMT
Call-ID: 659A737B-6BC11E4-81C5A4C1-25673DD3@195.18.163.206
Supported: 100rel,timer,resource-priority,replaces
Min-SE:  1800
Cisco-Guid: 1704620923-112988644-2176951489-627523027
User-Agent: Cisco-SIPGateway/IOS-12.x
Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY, INFO, REGISTER
CSeq: 102 INVITE
Max-Forwards: 70
Timestamp: 1404923095
Contact: <sip:22956600@195.18.163.206:5060>
Diversion: <sip:610@trunk.telio.no>;privacy=off;reason=unconditional;counter=1;screen=no
Expires: 180
Allow-Events: telephone-event
Proxy-Authorization: Digest username="globalknowledge",realm="trunk.telio.no",uri="sip:48268351@trunk.telio.no:5060",response="827112fab25f09ddfad72caa9bf7172b",nonce="53bd5fc553bd5fbbfd5b4dee73bedc8af7ce791e11ca10f2",algorithm=md5
Content-Type: application/sdp
Content-Disposition: session;handling=required
Content-Length: 273

v=0
o=CiscoSystemsSIP-GW-UserAgent 5248 6130 IN IP4 195.18.163.206
s=SIP Call
c=IN IP4 195.18.163.206
t=0 0
m=audio 18638 RTP/AVP 8 101
c=IN IP4 195.18.163.206
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:20
a=direction:active

000213: Jul  9 18:24:55.635 PST: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:
Received:
SIP/2.0 403 Unknown Identity
Via: SIP/2.0/UDP 195.18.163.206:5060;branch=z9hG4bK1E6257E;rport=5060
From: "Inga Sigfusdottir" <sip:22956600@trunk.telio.no>;tag=40D060-2C2
To: <sip:48268351@trunk.telio.no>;tag=49d3d2ceb0cf6a13610f2ddfc358d59c.0240
Call-ID: 659A737B-6BC11E4-81C5A4C1-25673DD3@195.18.163.206
CSeq: 102 INVITE
Server: Sip EXpress router (2.1.0-dev21 (i386/linux))
Content-Length: 0
Warning: 392 85.119.136.148:5060 "Noisy feedback tells:  pid=11277 req_src_ip=195.18.163.206 req_src_port=5060 in_uri=sip:48268351@trunk.telio.no:5060 out_uri=sip:48268351@trunk.telio.no:5060 via_cnt==1"

000214: Jul  9 18:24:55.643 PST: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:
Sent:
ACK sip:48268351@trunk.telio.no:5060 SIP/2.0
Via: SIP/2.0/UDP 195.18.163.206:5060;branch=z9hG4bK1E6257E
From: "Inga Sigfusdottir" <sip:22956600@trunk.telio.no>;tag=40D060-2C2
To: <sip:48268351@trunk.telio.no>;tag=49d3d2ceb0cf6a13610f2ddfc358d59c.0240
Date: Wed, 09 Jul 2014 16:24:55 GMT
Call-ID: 659A737B-6BC11E4-81C5A4C1-25673DD3@195.18.163.206
Max-Forwards: 70
CSeq: 102 ACK
Allow-Events: telephone-event
Content-Length: 0

registrar#debug ccsip events
SIP Call events tracing is enabled
registrar#
000215: Jul  9 18:25:45.351 PST: //-1/xxxxxxxxxxxx/SIP/Event/sipSPIEventInfo: Queued event from SIP SPI : SIPSPI_EV_CC_CALL_SETUP
000216: Jul  9 18:25:45.355 PST: //-1/xxxxxxxxxxxx/SIP/Event/sipSPIEventInfo: Queued event from SIP SPI : SIPSPI_EV_DNS_RESOLVE
000217: Jul  9 18:25:45.371 PST: //-1/xxxxxxxxxxxx/SIP/Event/sipSPIEventInfo: Queued event from SIP SPI : SIPSPI_EV_CC_CALL_DISCONNECTundebug all
All possible debugging has been turned off
registrar#

moyo oyegunle · ‎07-14-2014

Hello,

What you should be watching for are the sip responses to your request.Kinda finding it hard to understand your trace , did you attempt to forward or call.Either way the errors in your trace were :

SIP/2.0 407 Proxy Authentication Required : This can mean for some reason you are not sending a authentication header(check if digest authentication is required) or you are not sending the correct credentials.I see some authentication credentials later in the trace confirm they are the correct ones for that provider.(You might also want to have them changed after you fix this problem)

SIP/2.0 403 Unknown Identity :This usually means the SIP system you are trying to call is disconnecting/rejecting the call.

Try doing a trace for 2 different types of calls:

1 You say you can call an external number ,Send a trace where you call an external number from the same internal number

2 Try forwarding a call from an internal number to the same external number.