[Freeswitch-users] Cisco CUCM 6.1 and Freeswitch SIP trunk

Thu Jul 21 23:44:47 MSD 2011

The issue now is CUCM never sends an SDP.  Not in the INVITE, not in
the ACK.  If the INVITE contained an SDP you'd be fine with the
default configuration.  If it didn't but the ACK did you'd be fine
with 3pcc enabled.

Right now CUCM isn't providing either.  That's your problem, it's
somewhere on the Cisco side, and I've never seen it before.
Unfortunately I don't have any specific recommendations for you.

On Thu, Jul 21, 2011 at 8:46 AM, David Martin <adavidm at gmail.com> wrote:
> For completeness, here is the INVITE with "Disable Early Media" unchecked:
>    ------------------------------------------------------------------------
>    INVITE sip:65131111 at 10.201.27.20:5060 SIP/2.0
>    Date: Thu, 21 Jul 2011 12:42:02 GMT
>    Call-Info:
> <sip:10.200.170.3:5060>;method="NOTIFY;Event=telephone-event;Duration=500"
>    Allow: INVITE, OPTIONS, INFO, BYE, CANCEL, ACK, PRACK, UPDATE, REFER,
> SUBSCRIBE, NOTIFY, PUBLISH
>    From: "Ryan Girdlestone"
> <sip:64105554 at 10.200.170.3>;tag=90509204-400f-4cb6-9be7-cb5410a83a11-54376643
>    Allow-Events: presence, kpml
>    Supported: timer,replaces
>    Min-SE:  1800
>    Remote-Party-ID: "Ryan Girdlestone"
> <sip:64105554 at 10.200.170.3>;party=calling;screen=yes;privacy=off
>    Content-Length: 0
>    User-Agent: Cisco-CUCM6.1
>    To: <sip:65131111 at 10.201.27.20>
>    Contact: <sip:64105554 at 10.200.170.3:5060>
>    Expires: 180
>    Call-ID: d3b6ce80-e2811e9a-33-3aac80a at 10.200.170.3
>    Via: SIP/2.0/UDP 10.200.170.3:5060;branch=z9hG4bK4d55790bf1
>    CSeq: 101 INVITE
>    Session-Expires:  1800
>    Max-Forwards: 70
>
>
>
> On 21 July 2011 13:10, David Martin <adavidm at gmail.com> wrote:
>>
>> Kristian,
>> Here are some screenshots from the trunk config.
>> http://img200.imageshack.us/img200/9405/siptrunk.png
>> and for the sip profile
>> http://img191.imageshack.us/img191/3863/sipprofile.png
>> I have tried the early media option both ways with the same result. Is the
>> MTP payload type correct?
>> Appreciate your help on this.
>> David
>>
>> On 21 July 2011 11:13, Kristian Kielhofner <kris at kriskinc.com> wrote:
>>>
>>> David,
>>>
>>>  The problem here is that even with 3pcc enabled the ACK from
>>> CallManager doesn't have an SDP.  CallManager never provides an SDP
>>> during this entire trace.  Not in the INVITE (preferred) and not in
>>> the ACK (as I already mentioned).
>>>
>>>  This is odd, even for CallManager.  Are you sure you have MTP enabled:
>>>
>>> http://blog.krisk.org/2010/05/another-sip-gotcha-cisco.html
>>>
>>> On Thu, Jul 21, 2011 at 3:45 AM, David Martin <adavidm at gmail.com> wrote:
>>> > Gotcha, not sure how I missed the INVITE the first time, but here is a
>>> > new
>>> > pastebin that should have everything:
>>> > http://pastebin.com/T3eqms8N
>>> > thanks in advance once again.
>>> > David
>>> >
>>> >
>>> > On 21 July 2011 02:19, Christopher Rienzo <cmrienzo at gmail.com> wrote:
>>> >>
>>> >> Line 7 is the 200 OK response to the INVITE.
>>> >>
>>> >>
>>> >> On Wed, Jul 20, 2011 at 6:54 PM, David Martin <adavidm at gmail.com>
>>> >> wrote:
>>> >>>
>>> >>> Forgive my confusion, I'm new to freeswitch. Does the invite not
>>> >>> start at
>>> >>> line 7 on the pastebin?
>>> >>>
>>> >>> David
>>> >>>
>>> >>> Sent from my iPhone
>>> >>>
>>> >>> On 20 Jul 2011, at 07:22 PM, Kristian Kielhofner <kris at kriskinc.com>
>>> >>> wrote:
>>> >>>
>>> >>> > That trace is missing the INVITE that starts the transaction.
>>> >>> >
>>> >>> > On Wed, Jul 20, 2011 at 11:48 AM, David Martin <adavidm at gmail.com>
>>> >>> > wrote:
>>> >>> >> All,
>>> >>> >> Firstly apologies if this is not the correct place to ask, but I
>>> >>> >> am
>>> >>> >> having
>>> >>> >> problems getting CUCM 6.1 to talk with freeswitch over a SIP trunk
>>> >>> >> (I
>>> >>> >> only
>>> >>> >> need inbound from Cisco -> Freeswitch). I have enabled 3pcc, but
>>> >>> >> am
>>> >>> >> getting
>>> >>> >> the following sofia trace:
>>> >>> >> http://pastebin.com/g9VmvxFe
>>> >>> >> Can anyone point me in the right direction? I have also tried
>>> >>> >> enabling
>>> >>> >> MTP
>>> >>> >> on the Cisco side, but this does not make any difference.
>>> >>> >> Thanks in advance.
>>> >>> >> David
>>> >>> >> _______________________________________________
>>> >>> >> Join us at ClueCon 2011, Aug 9-11, Chicago
>>> >>> >> http://www.cluecon.com 877-7-4ACLUE
>>> >>> >>
>>> >>> >> FreeSWITCH-users mailing list
>>> >>> >> FreeSWITCH-users at lists.freeswitch.org
>>> >>> >> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>> >>> >>
>>> >>> >>
>>> >>> >> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>>> >>> >> http://www.freeswitch.org
>>> >>> >>
>>> >>> >>
>>> >>> >
>>> >>> >
>>> >>> >
>>> >>> > --
>>> >>> > Kristian Kielhofner
>>> >>> >
>>> >>> > _______________________________________________
>>> >>> > Join us at ClueCon 2011, Aug 9-11, Chicago
>>> >>> > http://www.cluecon.com 877-7-4ACLUE
>>> >>> >
>>> >>> > FreeSWITCH-users mailing list
>>> >>> > FreeSWITCH-users at lists.freeswitch.org
>>> >>> > http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>> >>> >
>>> >>> >
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>>> >>> > http://www.freeswitch.org
>>> >>>
>>> >>> _______________________________________________
>>> >>> Join us at ClueCon 2011, Aug 9-11, Chicago
>>> >>> http://www.cluecon.com 877-7-4ACLUE
>>> >>>
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>>> >>
>>> >>
>>> >> _______________________________________________
>>> >> Join us at ClueCon 2011, Aug 9-11, Chicago
>>> >> http://www.cluecon.com 877-7-4ACLUE
>>> >>
>>> >> FreeSWITCH-users mailing list
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>>> >>
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>>> >>
>>> >
>>> >
>>> > _______________________________________________
>>> > Join us at ClueCon 2011, Aug 9-11, Chicago
>>> > http://www.cluecon.com 877-7-4ACLUE
>>> >
>>> > FreeSWITCH-users mailing list
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>>> >
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>>> >
>>> >
>>>
>>>
>>>
>>> --
>>> Kristian Kielhofner
>>>
>>> _______________________________________________
>>> Join us at ClueCon 2011, Aug 9-11, Chicago
>>> http://www.cluecon.com 877-7-4ACLUE
>>>
>>> FreeSWITCH-users mailing list
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>>> http://www.freeswitch.org
>>
>
>
> _______________________________________________
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>
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>
>

-- 
Kristian Kielhofner