extens

$ cat extensions.conf
[general]

static=yes
writeprotect=no
clearglobalvars=no

[globals]
CONSOLE=Console/dsp             ; Console interface for demo
;CONSOLE=DAHDI/1
;CONSOLE=Phone/phone0
IAXINFO=guest                   ; IAXtel username/password
;IAXINFO=myuser:mypass
TRUNK=DAHDI/G2                  ; Trunk interface
TRUNKMSD=1                  ; MSD digits to strip (usually 1 or 0)
;TRUNK=IAX2/user:pass@provider

;FREENUMDOMAIN=mydomain.com                     ; domain to send on outbound

[dongle]

include => dongle-sms
include => dongle-ussd

exten => s,n,Goto(incoming,s,1)

[dongle-ussd]
exten => ussd,1,Verbose(Incoming USSD: ${USSD})
exten => ussd,n,System(echo '${STRFTIME(${EPOCH},,%Y-%m-%d %H:%M:%S)} - ${DATACARD}: ${USSD}' >> /var/log/asterisk/ussd.txt)
exten => ussd,n,Hangup()

[dongle-sms]
exten => sms,1,Verbose(Incoming SMS from ${CALLERID(num)} ${SMS})
exten => sms,n,System(echo '${STRFTIME(${EPOCH},,%Y-%m-%d %H:%M:%S)} - ${DATACARD} - ${CALLERID(num)}: ${SMS}' >> /var/log/asterisk/sms.txt)
exten => sms,n,Hangup()

[incoming]

exten => _X.,1,Dial(SIP/1002)
exten => h,1,Hangup()

[default]

exten => _+3X.,1,Dial(Dongle/dongle0/holdother:+${FILTER(0-9,${EXTEN}})

exten => 1001,1,Dial(SIP/1001)
exten => 1002,1,Dial(SIP/1002)
exten => 1003,1,Dial(SIP/1003)