I want to let users defined on sip.conf to dial on differents accounts to
an external sip proxy, the account id will be the same for the users and
the external sip proxy so I can use as known variable
Each user is registred to my *-box with [externalsip] context
On the extension.conf, how should i define the Dial/SIP command?
[externalsip]
exten => _.,1,Dial(SIP/${EXTEN}@${CALLERIDNUM}:sipserveripaddress)
or something like this