I am testing the following, and have no G729 codecs installed on my asterisk - Firefly [G729] -----> asterisk ------> firefly [G729] which works fine, -- Executing Dial("IAX2/3007@3007/3", "IAX2/3005|20|t") in new stack -- Called 3005 -- Call accepted by 192.168.2.20 (format G729A) -- Format for call is G729A -- IAX2/3005/14 is ringing -- Registered to '69.73.19.178', who sees us as 220.255.150.39:4569 -- IAX2/3005/14 answered IAX2/3007@3007/3 -- Attempting native bridge of IAX2/3007@3007/3 and IAX2/3005/14 Then I tested - Firefly [G729] -----> asterisk ------> Cisco 7960G which fails when I answer the 7960G, (call drops) -- Executing Dial("IAX2/3007@3007/1", "SIP/3000|20|t") in new stack -- Called 3000 Nov 20 15:47:21 WARNING[3457042]: channel.c:2074 ast_channel_make_compatible: No path to translate from SIP/3000-1b68(4) to IAX2/3007@3007/1(256) -- SIP/3000-1b68 is ringing -- SIP/3000-1b68 answered IAX2/3007@3007/1 Nov 20 15:47:25 WARNING[3457042]: channel.c:2074 ast_channel_make_compatible: No path to translate from IAX2/3007@3007/1(256) to SIP/3000-1b68(8) Nov 20 15:47:25 WARNING[3457042]: app_dial.c:944 dial_exec: Had to drop call because I couldn't make IAX2/3007@3007/1 compatible with SIP/3000-1b68 == Spawn extension (internal, 3000, 1) exited non-zero on 'IAX2/3007@3007/1' -- Hungup 'IAX2/3007@3007/1' Does this mean that I would need to install the G729 codecs into asterisk to make this work? If so, would that mean that asterisk would attempt the call from itself to the 7960G using the ALAW (or ULAW) codec and not using the g729 codec? I did the due diligence and checked with Mr. Google, and did not find any answer, so please don't forget to flame me if I am wrong! Regards Garry Taylor