[general] 
static=yes 
writeprotect=no 

[default]
exten => 1001,1,Answer() 
exten => 1001,n,Dial(SIP/1001,200,tr) 
exten => 1001,n,Hangup 

exten => 1002,1,Answer() 
exten => 1002,n,Dial(SIP/1002,200,tr) 
exten => 1002,n,Hangup. 

exten => 1003,1,Answer() 
exten => 1003,n,Dial(SIP/1003,200,tr) 
exten => 1003,n,Hangup. 
