[asterisk-users] Incompatible voice frame ulaw/alaw

[Markus]

Hi Larry,

Am 26.08.2012 03:57, schrieb Larry Moore:
> On 26/08/2012 3:45 AM, Markus wrote:
>> When I receive an incoming call from a SIP peer where I've configured
>>
>> disallow=all
>> allow=alaw
>> (and no other codec)
>>
>> I can see the following NOTICE on the console:
>>
>> Dropping incompatible voice frame SIP/peer07-0000007c of format ulaw
>> since our native format has changed to (alaw)
>>
>> My question is: where can I change the native format from ulaw to alaw
>> (or something else)? Is ulaw, as the native format, adjustable in some
>> config file or is it hard-coded into Asterisk?
>>
>> It doesn't seem to have any effect on the voice quality but the messages
>> on the console are quite annoying.
>
> I suspect you will find the frequency of these messages is the value you
> have set for rtpkeepalive.
>
> I would suggest you include the following in your peer's configuration;
>
> rtpkeepalive=0

thanks! Unfortunately, that didn't change anything. Any other advise?

I don't get where it's configured that Asterisk' default "hard-coded" 
codec is ulaw...  at least that's the information we get from that 
message, right?

Regards
Markus