[cisco-voip] 9971 SIP phone - no audio on calls between cluster to PSTN for certain phone numbers

[Carlo]

are you running mulitcast? 
I ran into almost the same problem. calls going from SIP to H323 back to SIP. works find until I have to transfer or put them on hold.
When you make the call and you don't get any audio, try putting the call on hold then pick it back up and see if you get audio.

Sent from my iPad

On Aug 12, 2013, at 12:49 PM, "Erick B." <erickbee at gmail.com> wrote:

> I would see that on a SCCP phone to right?  I'll have them check the 9971 (not at the location I am at). 
> 
> 
> On Mon, Aug 12, 2013 at 2:48 PM, Wes Sisk <wsisk at cisco.com> wrote:
> Watch the phone UI, does audio start before the status line goes to connected?
> 
> On Aug 12, 2013, at 3:47 PM, Erick B. <erickbee at gmail.com> wrote:
> 
> It is an external number (not ours) and audio starts right away so possibly. I could verify with SIP debug. 
> 
> 
> On Mon, Aug 12, 2013 at 2:38 PM, Wes Sisk <wsisk at cisco.com> wrote:
> Does the IVR cut through audio before the call goes into the connected state?
> -Wes
> 
> On Aug 12, 2013, at 3:22 PM, Erick B. <erickbee at gmail.com> wrote:
> 
> Hi,
> 
> Anyone have idea here?
> 
> Have a system with 2 CUCM clusters.
> 
> Cluster 1 is CUCM version 8.6.2.22900-9 with SIP CUBE to ITSP
> 
> Cluster 2 is CUCM version 8.6.2.20000-2
> 
> ICT between the clusters (Non Gatekeeper controlled).
> 
> SCCP phones on Cluster 2 can call outbound to numbers over the ICT and out CUBE GW fine. When a 9971 places call to same number, the call connects but no audio is heard.
> If we put the 9971 on Cluster 1 (no ICT) and same number is called it works fine.
> 
> I've been over the release notes for 8.62a SU1 to SU3 and not finding anything yet and have recreated the ICT and reset it. The trunk seems to be fine since the SCCP phones work for calling the few numbers the 9971 has trouble with. The 9971 can call most numbers just fine. 9971 is on current firmware version to. Looking for ideas before trying to do SU3 to see if it helps.
> 
> The number being called is a IVR with menu, etc.
> 
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