Voor het koppelen van VOIPBuster en Asterisk heb ik wijzigingen in twee conf bestanden gemaakt. Zie hieronder voor de inhoud ervan.

in sip.conf

[general]
port = 5060           ; Port to bind to (SIP is 5060)
bindaddr = 0.0.0.0    ; Address to bind to (all addresses on machine)
context = from-sip
callerid = Unknown
srvlookup=yes
language=en
relaxdtmf=yes
externip = [MY_EXTERNAL_IP]
localnet = [IP_OF_ASTERISK_SERVER]/255.255.255.0

disallow = all              ; disallow all codecs, we want to enable, 
allow    = gsm              ; what we deem is necessary
allow    = ilbc
allow    = speex
allow    = g729             ; g729 only works for pass-thru, if you haven't bought a license
allow    = g723.1
allow    = g726
allow    = ulaw             ; needed for FWD

; THERE COULD BE MORE REGISTER STATEMENTS HERE....
register => [VOIP_USERNAME]:[VOIP_PASSWORD]@sip.voipbuster.com/PIERRE_VOIPBUSTER

;
; Dial out to voipbuster
;
[voipbuster]
canreinvite=no
type=friend
fromuser=[VOIP_USERNAME]
fromdomain=voipbuster.com
username=[VOIP_USERNAME]
secret=[VOIP_PASSWORD]
host=sip.voipbuster.com 
insecure=very
disallow=all
allow=gsm 
allow=ulaw
nat=yes
qualify=200


in extension.conf

[voipbuster]
;
; voipbuster extension
;
exten => _00.,1,SetCallerID(${[YOUR NAME]} <${[VOIP_USERNAME]}>)
exten => _00.,2,Dial,SIP/${EXTEN}@voipbuster
exten => _00.,3,Playback(invalid)
exten => _00.,4,Hangup
exten => _00.,103,Busy