Example configuration of Asterisk

This configuration does not support Asterisk being behind a NAT firewall.

sip.conf

[general]
disallow=all
allow=gsm
allow=ulaw
allow=alaw
context = from-sip
maxexpirey=180
defaultexpirey=160
tos=reliability 
register=FWD##:password@fwd.pulver.com/2030

The 2030 at the end of the above row is the extension of incoming calls on this SIP account.


[fwd.pulver.com]
type=friend
secret=password 
username=FWD##
host=fwd.pulver.com

extensions.conf

All extensions beginning with a '7' is forwarded to Free World Dialup. To reach FWD extension 10000, dial 710000

[globals]
FWDUSERID=yourFWDuserID
FWDUSERNAME=Your Name
PHONE1=anyextensionyouwant
PHONE1VM=Voicemail-of-that-extension
FWDEXTEN=2030 ;See above in SIP.conf

[fwd-out]
exten => _7.,1,SetCallerID(${FWDUSERID})
exten => _7.,2,SetCIDName(${FWDUSERNAME})
exten => _7.,3,Dial(SIP/${EXTEN:1}@fwd.pulver.com)
exten => _7.,4,Playback(invalid)
exten => _7.,5,Hangup

[from-sip]
exten => ${FWDEXTEN},1,Dial(${PHONE1},30)
exten => ${FWDEXTEN},2,Voicemail(u${PHONE1VM})
exten => ${FWDEXTEN},3,Hangup
exten => ${FWDEXTEN},102,Voicemail(b${PHONE1VM})
exten => ${FWDEXTEN},103,Hangup