[Asterisk-Users] codec negotiation with CISCO 7960 and Firefly softphone

[raymond]

Hi all,

When I am making call with with my Cisco 7960 SIP phone, I found only codec g711 works.  

The network call is like this:

CISCO AS5300 ---sip----> Asterisk ----sip---> CISCO7960

Peer             User/ANR    Call ID      Seq (Tx/Rx)   Format
cisco7960        30511694    152828207b0  00102/00000   ulaw  
ciscoAS5300      34169980    31A6EE0B-AF  00101/00101   gsm   

Codec in CISCO AS5300
  g711alaw       G.711 A Law 64000 bps
  g711ulaw       G.711 u Law 64000 bps
  g723ar53       G.723.1 ANNEX-A 5300 bps
  g723ar63       G.723.1 ANNEX-A 6300 bps
  g723r53        G.723.1 5300 bps
  g723r63        G.723.1 6300 bps
  g729br8        G.729 ANNEX-B 8000 bps
  g729r8         G.729 8000 bps
  gsmefr         GSMEFR 12200 bps
  gsmfr          GSMFR 13200 bps

I already did the following config in sip.conf
allow=g723
allow=g729
allow=gsm
allow=ulaw
allow=alaw

However, it seems that only codec gsm work fines.  However, it still occupy more bandwidth.  Just would like to know if asterisk can do codec g723 or g729?  Anyone has encountered this problem or am I missing any config in asterisk?  

Thanks.

Raymond
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20050419/3e878847/attachment.htm