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Force ULAW on 2 Lines Only

depster
Posts: 32
 Member Since:
2007-12-04
Submitted by depster on Thu, 03/20/2008 - 12:21pm.

I have a 8 line SIP trunk configuration from my provider. 6 lines are dedicated to voice, 2 are set to uncompressed for data testing purposes.

I am curious how I can force the voice lines to use the g729 codec. If I add the allow=ulaw to the configuration for the trunk... the voice lines by default use the ulaw codec (regardless of the order in which I place them in the config).

Any ideas?

‹ Randomly lost calls over a digium card with euro isdn E1 Sangoma A500 Install / setup problem ›

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jades
Posts: 2340
 Member Since:
2006-11-26
You cant What you can do
Wed, 03/26/2008 - 7:27pm

You cant
What you can do though is take the PEER Details from the original trunk, make a new sip trunk, set the outbound caller ID and trunk name, paste the PEER Details, and LEAVE THE "REGISTRATION" FIELD BLANK

After doing that, change allow=g729 to allow=ulaw for that trunk

Now make an outbound route and give it a prefix so that calls with the 9 prefix would use this trunk
Dial plan:
9|1NXXNXXXXXX
9|011.

Trunk sequence- put your new ulaw trunk here

Make sure though that you can make calls from both trunks at the same time
Every provider is different
I have success with vitelity (I do something similar to what you are doing)

--

Joseph Ades
josephades1_at_gmail_dot_com
(212) 937-4299


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