[Asterisk-Users] Codec negotiation problems

[Daniel Corbe]

My PBX seems to have just started showing wierd codec negotiation problems.

I'm not all of a sudden getting this on certain phone numbers on my system:

Feb  8 22:19:19 NOTICE[1125329728]: channel.c:1683
ast_set_read_format: Unable to find a path from ULAW to G729A
Feb  8 22:19:19 NOTICE[1125329728]: channel.c:1650
ast_set_write_format: Unable to find a path from G729A to ULAW
    -- SIP/2101-aaf2 answered SIP/19544342000-375a
    -- Attempting native bridge of SIP/19544342000-375a and SIP/2101-aaf2
    -- Attempting native bridge of SIP/19544342000-375a and SIP/2101-aaf2
Feb  8 22:19:19 NOTICE[1225991488]: channel.c:1683
ast_set_read_format: Unable to find a path from G729A to ULAW
Feb  8 22:19:19 NOTICE[1225991488]: channel.c:1650
ast_set_write_format: Unable to find a path from ULAW to G729A
Feb  8 22:19:19 WARNING[1225991488]: chan_sip.c:1797 sip_write: Asked
to transmit frame type 256, while native formats is 4 (read/write =
4/4)

Regards,
Daniel