[Asterisk-Users] Sip provider problem or?

[Paul]

Anders Svensson wrote:

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> Hi!
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> We are running an * with 3 sip providers. Provider 1 works perfect, 
> provider 2 also. But the 3:rd one is a problem. All seems normal until 
> we try to make a call. The phone rings by the called party and picks 
> is up and hear only silence. The caller (local extension on the *) 
> still gets ring tone as of no one answer the call. The providers ssw 
> treats the call as answered and get no errors
>
>  
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> Any hints where to start looking?
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Try something like:

disallow=all
allow=ulaw

If that works then you do some trial and error to see which codecs are 
really supported.

I remember doing this with a broadvoice account on incoming. The primary 
DID worked but it seemed that the tollfree virtual number did not allow 
the same codecs. Don't make any assumptions. Test everything. I have 
seen cases where termination and origination codecs allowed were different.