-- extensions.conf ---
[general]

[globals]

[extensions]
exten => _XXXX,1,Dial(SIP/${EXTEN})

[toll-access]
include => extensions

exten => _X.,1,Dial(SIP/${EXTEN}@3171444444)

[incoming]
include => extensions

exten => s,1,Goto(1002,1)
exten => 3171444444,1,Goto(1002,1)


-- sip.conf ---

[general]
context=default
bindport=5060
svrloookup=yes


register => 3171444444@budgetphone.nl:xxxxx:3171444444@sip.budgetphone.nl/3171444444

[3171444444]
nat=no
type=friend
context=incoming
host=budgetphone.nl
fromuser=3171444444
fromdomain=budgetphone.nl
username=3171444444
insecure=very
;insecure=invite,port
secret=xxxxx
qualify=no
port=5060

[1000]
type=friend
context=toll-access
host=dynamic
callerid="First Extension" <1000>
canreinvite=no
disallow=all
allow=gsm
allow=alaw
qualify=no

[1002]
type=friend
context=toll-access
host=dynamic
callerid="Second Extension" <1002>
canreinvite=no
disallow=all
allow=gsm
allow=alaw
qualify=no