I've upgraded to to asterisk 11.25.1 (from 1.8). My local asterisk is showing it is registered with remote asterisk (same version), But when I try to make a call I get: iax2 show registry Host dnsmgr Username Perceived Refresh State 192.168.142.1:4569 N home_serve 192.168.142.7:4569 60 Registered 1 IAX2 registrations. -- Accepted AUTHENTICATED TBD call from 10.0.0.108 -- Accepting DIAL from 10.0.0.108, formats = (ulaw) -- Executing [4 at internal:1] Dial("IAX2/iaxy-322-3730", "IAX2/home_server:546987 at 192.168.141.1/4,30,rw") in new stack -- Called IAX2/home_server:xxxxx at 192.168.141.1/4 -- Call accepted by 192.168.141.1 (format ulaw) -- Format for call is (ulaw) -- IAX2/192.168.141.1:4569-83 answered IAX2/iaxy-322-3730 -- Channel 'IAX2/192.168.141.1:4569-83' unable to transfer -- Channel 'IAX2/192.168.141.1:4569-83' unable to transfer -- Hungup 'IAX2/192.168.141.1:4569-83' == Spawn extension (internal, 4, 1) exited non-zero on 'IAX2/iaxy-322-3730' -- Hungup 'IAX2/iaxy-322-3730' Is there something wrong with my dial plan: exten => 4,1,Dial(IAX2/home_server:xxxxxx@${clinic_server}/${EXTEN},30,rw) -- Regards, Thelma