[cisco-voip] Outbound Dial with Carrier SIP Trunk

FrogOnDSCP46EF ciscoboy2006 at gmail.com
Mon Oct 6 19:23:13 EDT 2008


Thanks for informing the fix to everyone on this list.

cheers
-frog

On Mon, Oct 6, 2008 at 11:21 PM, Pender, James <James.Pender at paetec.com>wrote:

> The issue actually turned out to be a CCM Bug. We worked with Mike on
> Friday and have him up and working via a hardware MTP on his router until we
> can implement a code that has the fix for the bug below. Ideally we want to
> have a setup at the end of the day without MTP.
>
> CSCsu72615 Bug Details
> CUCM fails to prack second 18X
> Symptom:
> CUCM 6.1.2
> When working with SIP provider we can get a 180 ringing contains an SDP.
>
> If you get a SDP in a 180 ringing, and it arrives before CUCM sends a 200
> OK for a previous PRACK you can run into issues where your call gets
> disconnected.
>
> CUCM needs to respond to the PRACK, but we don't.
>
> Conditions:
> 6.1.2
> SIIP trunk to provider with out MTP.
>
>
> 1st Found-In
> 6.1
>
> Fixed-In
> 7.1(0.39000.81)
> 6.1(2.9901.189)
> 6.1(2.1119.1)
> 7.0(1.12003.1)
> 7.0(1.12003.2)
>
> Thanks,
> Jim Pender
> Senior Data Network Engineer
> PAETEC Communications
>
>
>
> ________________________________
>
> From: cisco-voip-bounces at puck.nether.net [mailto:
> cisco-voip-bounces at puck.nether.net] On Behalf Of FrogOnDSCP46EF
> Sent: Saturday, October 04, 2008 2:47 AM
> To: cisco-voip at puck.nether.net
> Subject: Re: [cisco-voip] Outbound Dial with Carrier SIP Trunk
>
>
> Mike,
> You have a codec negotiation issue:
> May be your SIP provider is runing GSM or some weired codec.
>
>  ret2=0, codecMask2=4, bytes2=20, negot2=1, dtmf2=6
> Oct  3 09:05:08: //64/xxxxxxxxxxxx/CCAPI/
> ccConferenceCreate:
>  delay media to slow start case, codec negotation is not done
> Oct  3 09:05:08: //64/xxxxxxxxxxxx/CCAPI/cc_api_get_xcode_stream:
>
>
>
>
> --
> Smile, you'll save someone else's day!
> Frog
>
>


-- 
Smile, you'll save someone else's day!
Frog
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