[cisco-voip] CUCME. INVITE without SDP.

Nick Matthews matthnick at gmail.com
Thu Jan 27 23:32:18 EST 2011


I should add one other thing - the SIP stack in IOS before 12.4(20)T is
unreliable in my opinion.  I think there's a more than decent chance if you
tried this on 12.4(20)T you may not see the issue.

-nick

2011/1/27 Nick Matthews <matthnick at gmail.com>

> By default you should be receiving fast start.  There are a number of
> things that can happen to stop that media exchange from happening
> successfully.  Some people are fans of copying all types of progress
> indicator, rtp send-receive, and a metric ton of other commands that should
> be applied to routers everywhere because they found it on some document
> somewhere.  Those would be my first suspects.
>
> The second suspect is to inspect the TCP stream that should be happening
> for the fast start.  Check to see if in the h225 debugs you're receiving a
> h245 port.  If not, you'll need to investigate cucme1.  If so, you need to
> figure out what's going on between the two routers, and if cucme2 is
> rejecting it for some reason.
>
> A few things to clarify for reference - fast start should be on by default,
> and early offer forced only works for SIP-SIP.
>
> -nick
>
> 2011/1/27 Aleksey Qwerty <russian.qwerty at gmail.com>
>
> Thank you for the reply.
>>
>> I'm not sure, in fact. But CUCME_1 config looks like:
>>
>> voice class h323 1
>>  call start fast
>>
>>
>> dial-peer voice 1 voip
>>  description To CUCME_2
>>  voice-class h323 1
>>
>> Please help.
>>
>> 26 января 2011 г. 18:57 пользователь Peter Slow <peter.slow at gmail.com>написал:
>>
>> Does make the H323 side use fast start work?
>>>
>>> -Peter
>>>
>>> 2011/1/26 Aleksey Qwerty <russian.qwerty at gmail.com>:
>>> > Thank you for the response...but I pointed out chassis and IOS version
>>> on
>>> > purpose. The problem is there is no such function in a current IOS or
>>> in the
>>> > latest available IOS version for 3745 chassis.
>>> >
>>> >
>>> http://www.cisco.com/en/US/docs/ios/voice/command/reference/vr_e1.html#wp1052977
>>> >
>>> > "...сommand was integrated into Cisco IOS Release 12.4(20)T."
>>> >
>>> > Is there other way to change the situation?
>>> >
>>> > Thank you in advance.
>>> >
>>> > 2011/1/25 Peter Slow <peter.slow at gmail.com>
>>> >>
>>> >> early-offer forced
>>> >>
>>> >>
>>> >>
>>> http://www.cisco.com/en/US/docs/ios/voice/cube/configuration/guide/vb-gw-sipsip.html#wp1445377
>>> >>
>>> >> https://supportforums.cisco.com/thread/299654
>>> >>
>>> >> -Peter
>>> >>
>>> >> On Tue, Jan 25, 2011 at 8:49 AM, Aleksey Qwerty
>>> >> <russian.qwerty at gmail.com> wrote:
>>> >> > Dear all,
>>> >> >
>>> >> > I'm faced the problem with Cisco 3745, IOS Advanced IP Services
>>> >> > 12.4(15)T3,
>>> >> > CUCME 4.1(0).
>>> >> >
>>> >> > I have the following scheme:
>>> >> > Cisco IP Phone --SCCP--> CUCME_1 --H.323/G.729/alpha-numeric-->
>>> CUCME_2
>>> >> > --SIP/G.711ulaw/rtp-nte--> ITSP
>>> >> >
>>> >> > Calls from CUCM_2 to ITSP works just fine, instead of calls from
>>> CUCME_1
>>> >> > via
>>> >> > CUCME_2. Calls are not established at all. In debug ccsip messages I
>>> can
>>> >> > see
>>> >> > that there is no SDP in INVITE from CUCME_2 to ITSP.
>>> >> >
>>> >> > Here is config of CUCME_2:
>>> >> >
>>> >> > voice service voip
>>> >> >  allow-connections h323 to h323
>>> >> >  allow-connections h323 to sip
>>> >> >  allow-connections sip to h323
>>> >> >  allow-connections sip to sip
>>> >> >  no supplementary-service h450.3
>>> >> >  supplementary-service h450.12
>>> >> >  redirect ip2ip
>>> >> >  fax protocol t38 ls-redundancy 5 hs-redundancy 2 fallback none
>>> >> >  h323
>>> >> >  sip
>>> >> >
>>> >> > sip-ua
>>> >> >
>>> >> > dial-peer voice 1 voip
>>> >> >  description To ITSP
>>> >> >  translation-profile outgoing Cut9
>>> >> >  huntstop
>>> >> >  destination-pattern 9T
>>> >> >  session protocol sipv2
>>> >> >  session target ipv4:192.168.1.1
>>> >> >  session transport udp
>>> >> >  dtmf-relay rtp-nte
>>> >> >  codec g711alaw
>>> >> >  clid strip name
>>> >> >  clid network-number 111222333
>>> >> >  no vad
>>> >> >
>>> >> >
>>> >> > How can I get SDP (some capabilities information) in INVITE message
>>> from
>>> >> > CUCME_2?
>>> >> >
>>> >> > Thanks in advance.
>>> >> >
>>> >> > --
>>> >> > BR,
>>> >> > Aleksey Qwerty
>>> >> >
>>> >> >
>>> >> > _______________________________________________
>>> >> > cisco-voip mailing list
>>> >> > cisco-voip at puck.nether.net
>>> >> > https://puck.nether.net/mailman/listinfo/cisco-voip
>>> >> >
>>> >> >
>>> >
>>> > --
>>> > BR,
>>> > Aleksey Qwerty
>>> >
>>> >
>>>
>>
>> --
>> BR,
>> Aleksey Qwerty
>>
>>
>> _______________________________________________
>> cisco-voip mailing list
>> cisco-voip at puck.nether.net
>> https://puck.nether.net/mailman/listinfo/cisco-voip
>>
>>
>
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