[cisco-voip] Outbound Video Calls to Webex fail with 481

[Ryan Huff]

To expand on this; it really sounds like where your trouble happens is during a re-invite event. If that is the case, it could very well be DNS as mentioned OR less likely (but plausible), a TCP timeout mismatch on a firewall.

The codec logs and CCM trace will tell the tale for sure though.

Thanks,

Ryan

On Aug 20, 2017, at 6:36 PM, Ryan Huff <ryanhuff at outlook.com<mailto:ryanhuff at outlook.com>> wrote:

This might have to do with DNS. I would review all your internal/external SRV/A records for EXP/CUCM and your DNS zone in EXP.

It sounds like the call is traversing expressway, but call manager may be having trouble finding the call leg via DNS, to connect the codec to.

Pulling CCM traces and debug logs on the codec for a failed call will tell you for sure.

Thanks,

Ryan

On Aug 20, 2017, at 6:30 PM, Jonathan Charles <jonvoip at gmail.com<mailto:jonvoip at gmail.com>> wrote:

Just a single VCSC and VCSE.... single CUCM 11.5... this is just a proof of concept...



Jonathan

On Sun, Aug 20, 2017 at 5:27 PM, Ryan Huff <ryanhuff at outlook.com<mailto:ryanhuff at outlook.com>> wrote:
Do you have EXP clusters or is this a single C/E pair?

Sent from my iPhone

> On Aug 20, 2017, at 6:26 PM, Jonathan Charles <jonvoip at gmail.com<mailto:jonvoip at gmail.com>> wrote:
>
> We have an SX80 connected to CUCM 11.5 and VCSC 8.10  to a VCSE 8.10...
>
> Outbound calls route to Webex, you see them enter the meeting and then after 4 seconds, they drop, the VCS E shows
>
> 481 Call/Transaction Does Not Exist
>
> Does anyone have any ideas?
>
>
>
>
> Jonathan
>
>
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