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