[Asterisk-Users] Working Asterisk With Vonage

[usman at user.iphonica.net]

Hi ! 
I have been working on making my asterisk server work with Vonage 
services. I have been able to recieve calls on my asterisk machine but i 
couldnt call through that account to other people. Means if i call a zap 
channel and then dial 1 314 652 ... then i get an error like 

Executing Dial("Zap/3-1", "SIP/<dialled number>@sphone.vopr.vonage.net:5061") 
in new stack
    -- Called <dialled number>@sphone.vopr.vonage.net:5061
    -- Got SIP response 404 "Not Found" back from 216.115.25.198
    -- SIP/sphone.vopr.vonage.net-ec6e is circuit-busy
  == Everyone is busy at this time
    -- Executing Hangup("Zap/3-1", "") in new stack
  == Spawn extension (local, 192512100488, 2) exited non-zero on 'Zap/3-1'
    -- Hungup 'Zap/3-1'


whether i dial any number ... i get the same response... and always ... 
Can anyone guess what might be the problem ? 
in sip .conf my settings are :

register => <username>:<password>@sphone.vopr.vonage.net:5061

[sphone.vopr.vonage.net]
type = peer
fromuser = <username>
secret = <password>
host = <asterisk machine ip>:5070
fromdomain=sphone.vopr.vonage.net
dtmfmode=rfc2833
nat = yes
canreinvite=no

In extensions.conf i have done : 

exten => _1.,1,Dial,SIP/${EXTEN}@sphone.vopr.vonage.net:5061,tr
exten => _1.,2,Hangup

Please help me in this reagard.

Regards ,

Usman.