asterisk users - Mar 2005 - G726-16 passthrough...

Hello,

I'm wondering if anyone has benn able to successfully get g726-16
passthrouhg to work?  I am wanting to use this codec instead of g729 as
I'm running out of DSPs using a high complexity codec on the Ciscos.  I
would think it would work just as g729 does, which has been working fine
for me, but it does not.  G726-32 does work great however, but it's like
Asterisk doesn't recognize the payload tpyes for G726-16.  Here's what I
get when trying:

Found RTP audio format 98
Found RTP audio format 101
Found description format G726-16
Found description format telephone-event
Capabilities: us - 0x14 (ulaw|g726), peer - audio=0x0
(nothing)/video=0x0 (nothing), combined - 0x0 (nothing)
Non-codec capabilities: us - 0x1 (g723), peer - 0x1 (g723), combined -
0x1 (g723)
Mar 21 10:54:01 NOTICE[29735]: chan_sip.c:2917 process_sdp: No
compatible codecs

I have allow=g726 in the sip.conf file (I added disallow=all and made
sure that was the only allow statement to take care of any transcoding
issues Asterisk might be trying to do).  It looks like the payload RTP
type is 98 which I don't see listed in rtp.c, could this be causing a
problem?

Thanks,

Brian

Brian McCrary wrote:
> Hello,
> 
> I'm wondering if anyone has benn able to successfully get g726-16
> passthrouhg to work?  I am wanting to use this codec instead of g729 as
> I'm running out of DSPs using a high complexity codec on the Ciscos.  I
> would think it would work just as g729 does, which has been working fine
> for me, but it does not.  G726-32 does work great however, but it's
like
> Asterisk doesn't recognize the payload tpyes for G726-16.
Asterisk does not support G726-16.  It only supports G726-32.

-- 
Always do right. This will gratify some people and astonish the rest.
Mark Twain

Eric Wieling wrote:
> Asterisk does not support G726-16.  It only supports G726-32.
Thanks for your reply! Doing show modules shows: format_g726.so Raw
G.726 (16/24/32/40kbps) data so I was thinking that G726 (16/24/32/40)
would passthrough just like G729 does when you only have the
format_g729.so module loaded.  I take it other support would have to be
added since I only see one entry in rtp.c for G726 though.

Brian