[Asterisk-Users] Cisco to Cisco - poor quality

[Doug Shubert]

what firmware are you using? is it SIP?
to check, push settings then status and firmware
you should have a load ID like this 'POS3-04-4-00'
also check the preferred CODEC
we use g711ulaw as the default

Terence Parker wrote:

> I am just starting to deploy asterisk in our office to use as our primary
> phone system - we plan to use a Voicetronix OpenLine4 card as our PSTN
> gateway - but one thing at a time... haven't got that far yet. Currently,
> i'm trying simple IP to IP calls within the office using our Cisco 7960's
> phones running SIP.
>
> When I make a call between these two phones, the conversation is of a
> quality so bad that it is barely audible (5% makes sense). I recall having
> this same problem when I tested asterisk briefly one year ago. However, I
> did also try on this occasion to make a call between the cisco phone and
> MSN - that worked fine. So it would seem that the cisco phone is to blame?
>
> - but why? Does anyone know why two phones of the same type should have so
> much problem talking to each other?
>
> Thanks!
>
> Terence.
>
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