[asterisk-users] Can't get G.729 to work...

[Dave Fullerton]

That's a bit misleading. Yes calls that travel over a PRI will be using 
ulaw, but only over the PRI leg of the call. The SIP leg can still be 
using G.729 with asterisk transcoding between the two legs.

Ben, You haven't shown us the contents of your sip.conf file for the 
peers you are working on but I have a guess as to what is going on. In 
one of your previous messages you state: "I moved G.729 to the top of
that list (just below disallow)" I'm guessing your list looks something 
like this:

disallow=all
allow=g729
allow=ulaw
allow={maybe something else}

This will be fine for all the phones in the office but the remote phones 
need to ONLY have disallow=all and allow=g729 in their entries in 
sip.conf as Jeff's reply stated. By having the allow=ulaw entry in there 
you are giving asterisk permission to allow any call that is already in 
the ulaw format (calls from the PRI) to remain in that format when 
contacting your remote phones. If you're still stick post your sip.conf 
(with the passwords removed) and we can help you out.

-Dave


Danny Nicholas wrote:
> IMO you can only use the G.729 on a SIP call.  If the call falls onto the
> PRI framework, ulaw will be forced.
> 
> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Ben Schorr
> Sent: Tuesday, December 15, 2009 2:11 PM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [asterisk-users] Can't get G.729 to work...
> 
> Sorry, I think I may have misspoke...
> 
> What I'm hoping for is that all of the connections between my phones (or
> at least a particular group of them) and my Asterisk server will use
> G.729.  Currently it seems like it usually is, but not always, and I
> haven't figured out the pattern.
> 
> All of our calls fall into two categories:
> 
> Internal calls - one extension to another within our single Asterisk
> server org.
> External calls - To/From one of our extensions out thru the PRI line to
> our carrier (Hawaiian Tel) to phone numbers out in the world.
> 
> For some reason it appears that inbound calls from out in the world are
> going to our phones using ULAW, but outbound calls to the world are
> using G.729.
> 
> That's progress but...how can I get my Asterisk server to use G.729 to
> pass those incoming calls to my phones?
> 
> Best wishes and aloha, 
> 
> Ben M. Schorr
> Chief Executive Officer
> ______________________________________________
> Roland Schorr & Tower
> www.rolandschorr.com
> bens at rolandschorr.com
> 
> 
>> -----Original Message-----
>> From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-
>> bounces at lists.digium.com] On Behalf Of Jeff LaCoursiere
>> Sent: Tuesday, December 15, 2009 9:54 AM
>> To: Asterisk Users Mailing List - Non-Commercial Discussion
>> Subject: Re: [asterisk-users] Can't get G.729 to work...
>>
>>
>> On Tue, 15 Dec 2009, Ben Schorr wrote:
>>
>>> O.K., interestingly enough when I call our extensions from my mobile
>>> phone it still seems to be using ULAW, but when they dial out it
> seems
>>> to be using G.729 now.
>>>
>>> Is there something in Dahdi that I need to configure so that inbound
>>> calls (from the PRI on a Digium TE205) use G.729 to get to the
> phones
>>> too?
>> A Dahdi channel over a PRI will always be ulaw - that is the encoding
> on the
>> PRI (at least in the US).  If your phones are using G.729 then
> transcoding will
>> be taking place within asterisk for the bridge between the channels.
>>
>> My guess is you are looking at the PRI channel.  There should be
> another
>> channel for the phone.  That should always be G.729 now.
>>
>> Cheers,
>>
>> j
>>
>>> Ben M. Schorr
>>> Chief Executive Officer
>>> ______________________________________________
>>> Roland Schorr & Tower
>>> www.rolandschorr.com
>>> bens at rolandschorr.com
>>>
>>>
>>>> -----Original Message-----
>>>> From: asterisk-users-bounces at lists.digium.com
> [mailto:asterisk-users-
>>>> bounces at lists.digium.com] On Behalf Of jeff at jeff.net
>>>> Sent: Tuesday, December 15, 2009 9:13 AM
>>>> To: Asterisk Users Mailing List - Non-Commercial Discussion
>>>> Subject: Re: [asterisk-users] Can't get G.729 to work...
>>>>
>>>>
>>>>
>>>> On Tue, 15 Dec 2009, Ben Schorr wrote:
>>>>
>>>>> Ahhh...yes, I think that may have been it.  I moved G.729 to the
> top
>>>>> of that list (just below disallow) and now I have a "restart when
>>>>> convenient" pending.  Is that sufficient or do I have to actually
>>>>> reboot the server for the change to take effect?
>>>> Just do a "sip reload" at the asterisk CLI prompt and you will be
>>>> good
>>> to go.  It
>>>> won't cutoff any calls in progress.  Then reboot your phone.
>>>>
>>>> Cheers,
>>>>
>>>> j