Thanks for the replies. My cisco firmware is only POS3-04-2-00, though it is SIP. It used to work fine under vocal though - which was strange. Is this definitely nothing to do with asterisk? I do note however that my firmware is fairly old... except cisco aren't exactly generous with firmware upgrades.
I have tried both g729a (default on my phone) and g711ulaw with no success. But i'll have another fiddle and try to get it to work. Thanks again. Terence > what firmware are you using? is it SIP? > to check, push settings then status and firmware > you should have a load ID like this 'POS3-04-4-00' > also check the preferred CODEC > we use g711ulaw as the default -- snip -- > You must be doing something wrong (maybe codec problems), because I've > had absolutely no problems with Cisco to Cisco calls, and I've got > almost 50 deployed across the company. (For what it's worth, I'm using > the "ulaw" codec.) > > Jared Smith _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users