Unable to transfer SCCP to SIP

[Thiago Gandara]

Hi voice team,

I have a CUCM 8.5, all the phones are registered there (SCCP and SIP). All the transfers and calls working fine, but when a do a transfer from my SCCP phone to any SIP phone i receive the busy signal.

SIP can tranfer do another SIP and to SCCP, works fine, but SCCP dont transfer to SIP (with ou without consult).

Thanks.

[Leonardo Santana]

What happens when you try to transfer the call from an SCCP Phone to SIP Phone?

[Thiago Gandara]

I listening a busy signal

Sent from Cisco Technical Support iPhone App

[Mohammed al Baqari]

Hi,

I don't think it an MTP or XCODER issue since both phones are registered with same CUCM. But he can give it a try.

Please share the traces for failed transfer and let's have a look.

"Please rate useful posts"

[Thiago Gandara]

Hi, follow the debug. The problem occur only in a transfer, I test calling from my number 7091(SCCP) to 7060 and 7060(SCCP) try to transfer to 7062(SIP), when user from 7062 answer the phone, the calls drop, and i receive a busy signal.

[Bruno Rangel]

Hi Thiago

This sounds with MTP or CODEC related issue.

This happens just when you transfer call? Try put a call on hold for a while(5 Minu) then try rsume it. Let me know what the behavior from both devices?

which Phone models are using?

Ensure that you have media resources added to correctly on device-pool.

A good start to isolate this issue will be check the CDR for that calls. Analyzing those cause codes is an effective way of aggregating call failures.

Please rate this post

[Thiago Gandara]

I verify and the DP is configured correct. I send to the discussion the CDR files.

[Edson Vuma]

The following example sets a transfer pattern.

A maximum of 32 transfer  patterns can be entered. In this example, 55501.. (the two periods are  wildcards) permits transfers to any number in the range from 555-0100 to  555-0199

Router#config t

Router(config)# telephony-service

Router(config)#transfer-system full-consult

Router(config-telephony)# transfer-pattern 55501..

Try This and rate if is helpfull.

--
Regards
Edson Vuma

[Thiago Gandara]

Hi, I used a CUCM not CUCME.

[Edson Vuma]

Any thing...you can see this discussion I opened.

Here is the link: https://supportforums.cisco.com/thread/2163603

--
Regards
Edson Vuma

[Ayodeji Okanlawon]

Thiago,

Ib have spent a few minutes looking at the debugs and here is what is going on..

First of all the call is disconnected because of Transcoder issues...

[8024887,NET]

BYE sip:7062@172.23.0.130:5060 SIP/2.0

Via: SIP/2.0/UDP 172.20.1.106:5060;branch=z9hG4bK6e403b19b67e

From: "7060 - Danielli" <7060>;tag=2443151~14e2c9d2-919d-423a-808f-24fe327b10e2-28083834

To: <7062>;tag=4ea34534e0947303i0

Date: Wed, 12 Sep 2012 12:32:07 GMT

Call-ID:

d7618f00-50180bf-232d-6a0114ac@172.20.1.106

User-Agent: Cisco-CUCM8.5

Max-Forwards: 70

CSeq: 105 BYE

Reason: Q.850;cause=47

Content-Length: 0

Further traces confirm this...

09:32:07.460 |MediaTerminationPointControl(3)::getResourcesAllocated -- DeviceName=XCODER Ci=28083837 ResourceCount=1|1,100,220,1.3008786^172.23.0.130^*
09:32:07.460 |MediaTerminationPointControl(3)::getResourcesAllocated -- Logging RegionA=IT7 Pinhais Caps and MTP/XCoder Region=IT7 Pinhais Caps|1,100,220,1.3008786^172.23.0.130^*
09:32:07.460 |MediaTerminationPointControl(3)::logCapabilitiesinTrace -- MTP/XCoder Device Caps = 4 2 15 16 11 12 257 |1,100,220,1.3008786^172.23.0.130^*
09:32:07.460 |MediaTerminationPointControl(3)::logCapabilitiesinTrace -- Device Caps = 4 2 86 15 16 11 12 257 |1,100,220,1.3008786^172.23.0.130^*
09:32:07.460 |RegionsServer::MatchCapabilities -- kbps=64, capACount=8, capBCount=7|*^*^*
09:32:07.460 |MediaTerminationPointControl(3)::getResourcesAllocated -- Logging RegionB=IT7 Brasilia Caps and MTP/XCoder Region=IT7 Pinhais Caps|1,100,220,1.3008786^172.23.0.130^*
09:32:07.460 |MediaTerminationPointControl(3)::logCapabilitiesinTrace -- MTP/XCoder Device Caps = 4 2 15 16 11 12 257 |1,100,220,1.3008786^172.23.0.130^*
09:32:07.460 |MediaTerminationPointControl(3)::logCapabilitiesinTrace -- Device Caps = 4 2 |1,100,220,1.3008786^172.23.0.130^*
09:32:07.460 |RegionsServer::MatchCapabilities -- kbps=8, capACount=2, capBCount=7|*^*^*
09:32:07.460 |MediaTerminationPointControl(3)::getResourcesAllocated -- No matching caps for either side A or side B, MTP not allocated|1,100,220,1.3008786^172.23.0.130^*
09:32:07.460 |MediaTerminationPointControl(3)::getResourcesAllocated -- match1=6 match2=0|1,100,220,1.3008786^172.23.0.130^*
09:32:07.460 |MediaTerminationPointControl(3)::getResourcesAllocated -- allocateErrBitset=0x41|1,100,220,1.3008786^172.23.0.130^*
09:32:07.460 |MediaTerminationPointControl(3)::SendMTPResourceErrToSender - ERROR  AllocateMtpResourceReq failed -- Ci=28083837, errBitset=0x45|1,100,220,1.3008786^172.23.0.130^*
09:32:07.460 |MediaResourceCdpc(13511)::resource_rsvp_AllocateMtpResourceErr Device=XCODER deviceCapIntersec=1|1,100,220,1.3008786^172.23.0.130^*
09:32:07.460 |MediaResourceCdpc(13511)::adjustDeviceTblXcoder - mCepn=37196750-73be-d7dc-ab80-34afddf5a41e, allocateErrBitset=0x45, devCapIntersect=0x1, mandatoryCaps=0x0, resourceCount=1|1,100,220,1.3008786^172.23.0.130^*
09:32:07.460 |MediaResourceCdpc(13511)::adjustDeviceTblXcoder - Codec Mismatch|1,100,220,1.3008786^172.23.0.130^*
09:32:07.460 |MediaResourceCdpc(13511)::removeDevicePidTableEntry - cepn=37196750-73be-d7dc-ab80-34afddf5a41e deviceName=XCODER deviceTblSize=0|1,100,220,1.3008786^172.23.0.130^*
09:32:07.460 |MediaResourceCdpc(13511)::mtpErrorResponseToManager - CI=28083837|1,100,220,1.3008786^172.23.0.130^*
09:32:07.460 |MRM::waiting_AllocateMtpResourceErr - Deallocate not received for this ci = 28083837. Process normally|1,100,220,1.3008786^172.23.0.130^*
09:32:07.460 |MRM::waiting_AllocateMtpResourceErr - ERROR - no resources are available -- ci = 28083837|1,100,220,1.3008786^172.23.0.130^*

Now here is the explanation of whats going on...

CUCM wants to use a xcoder for the transfered call from extension 7060 (SCCP) to extension 7962(SIP)

cucm found a xcoder with the name XCODER which is in region Region=IT7 Pinhais

Now the SCCP phone is in the same region as the xcoder, so we see the cap match as 64Kbps,

But the SIP phone is in region Region=IT7 Brasilia, which is set to use g729 to the region of the xcoder.

Now the issue here is that it looks like its the SIP phone that needs the xcoder so it needs to use g711 to the xcoder.

So I suggest that you either put the SIP phone is the same region as the xcoder or configure the region between the sip phone and the xcoder to use g711...

Try this and let me know if it works

Please rate all useful posts

"'Nature is too thin a screen, the glory of the omnipresent God bursts through it everywhere"-Ralph Waldo Emerson

[Thiago Gandara]

Hi, i will do it..then i post here the results.

Thank you

[Thiago Gandara]

Hi, I realized that the problem occurs when I try to do the consult-transfer, but worked directly transferring.

[Ayodeji Okanlawon]

Have you done what I said you should do? This trace was it for consult transfer? Then please do what I suggested

Please rate all useful posts

"'Nature is too thin a screen, the glory of the omnipresent God bursts through it everywhere"-Ralph Waldo Emerson

[Thiago Gandara]

Hi, yes the trace was it for consult transfer.  How do to configure the region between the sip phone and the xcoder to use g711

Thanks