UC540 Codec? Works one day, next not!

[Paul Santabarbara]

Issue:

Internal calls to an extension if not answered go to VM fine.

External calls after the same number of rings get "dead air".

Upon several debugs the SMB support engineer found that the dial-peer was referencing “voice-class codec 1”,

except there was no codec preference set.

We had to add the lines:

voice class codec 1

codec preference 1 g711ulaw

codec preference 2 g729r8

After this was added the external calls reached the voicemail.

Note: there is no way to check or make these adjustments via CCA.

Maybe in future releases it can be added.

Thank you, Paul

[David Trad]

Hi Paul,

Thanks for the heads up

What I don't get with this one is that CCA by default adds this in, so either they have stopped doing that now or somehow CCA failed to insert this bit of code into the configuration.

I must remember to keep an eye out for this stuff, may even need to do a once over on every system and see if there are any stand out issues prior to deployment of the system.

Cheers,

David.

[Steven DiStefano]

Hmmm.  I beg to differ.

I just went to the 8.1.0 SWP and checked the default configuration file.

The good news is its there:

!
voice class codec 1
codec preference 1 g711ulaw
codec preference 2 g729r8
!

Not sure how it got removed???

[David Trad]

Hi Steve,

Hmmm.  I beg to differ.
!
Not sure how it got removed???

I did point out that I believed that it added this as default, and I only mention that it might be removed because I still need to see what the latest version of CCA does to the system.

And I also point out that CCA in the past has been known to just remove Code for no apparent reason when applying an update to another piece of Code, but this was in earlier versions like (2) or (2.1) so any speculations on that now is just that "speculation" by me as I can neither confirm it or have tested if this is still the case.

Cheers,

David.

[Steven DiStefano]

My response was to Paul :-)

If we retrace the steps and find something (culprit), you know we will look at it, not problem.

[David Trad]

OK..... My bad

So I will shut up now I have filled my quota of support for the day anyway's so will get back to doing some work... or maybe not

Cheers,

David....

[Paul Santabarbara]

Daid/Steven, thank you for looking into this.

I do not know if or why the code disappeared.  It is just the  reason the engineer said we were unable to get an external call to hit the voicemail.

I would assume the CCA does set this code and again do not know if or what change was made that effected it.

I just thought I would bring it to the communities attention in case it becomes common place.

Paul

[David Trad]

Hi Paul,

I do not know if or why the code disappeared.

I do... Its those damn Cisco Green Gremlins - they were fed and they are spreading now

Cheers,

David.