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

[Jonathan Charles]

Just an FYI, I did get this fixed... the firewall guy told me all rules
were implemented... and nothing was being blocked.

Turned out he did a permit for sip on the ACL, which did not include 5061...

Added 5061 and it works.



Thanks!


Jonathan

On Sun, Aug 20, 2017 at 7:53 PM, Jonathan Charles <jonvoip at gmail.com> wrote:

> Ok, let me poke around a bit... I assume every problem is because of the
> firewall...
>
>
> Jonathan
>
> On Sun, Aug 20, 2017 at 7:36 PM, Ryan Huff <ryanhuff at outlook.com> wrote:
>
>> 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> 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> 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> 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>
>>> 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
>>> >
>>> >
>>> > _______________________________________________
>>> > cisco-voip mailing list
>>> > cisco-voip at puck.nether.net
>>> > https://puck.nether.net/mailman/listinfo/cisco-voip
>>>
>>
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>>
>>
>
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