[Asterisk-Users] problem with vigor 2600v

[louis g]

I have recently installed a test Asterisk server but am having problems 
getting this to work with a Vigor 2600V. I have no issues using X-Lite to 
connect to Asterisk but if I configure the 2600V, it registers correctly but 
I don't get any sound at all although calls do seem to connect. The 2600V 
works fine with FWD and other services so I suspect I am missing a setting 
but as a user have no idea where to start.
Can anyone please point me in the right direction..?

Many thanks
Louis
London, UK