[from-trunk-dongle]
exten => sms,1,Verbose(Incoming SMS from ${CALLERID(num)} ${BASE64_DECODE(${SMS_BASE64})})
exten => sms,n,System(echo "To: xxx@gmail.com\nSubject: Incoming SMS from ${CALLERID(num)} to ${OUTCID_1}\n\n${STRFTIME(${EPOCH},,%Y-%m-%d %H:%M:%S)} - ${DONGLENAME} - ${CALLERID(num)}: " > /tmp/sms.txt)
exten => sms,n,Set(FILE(/tmp/sms.txt,,,a)=${BASE64_DECODE(${SMS_BASE64})})
exten => sms,n,System(sendmail -t < /tmp/sms.txt)
;exten => sms,n,DongleSendSMS(dongle0,+8618699999999,${BASE64_DECODE(${SMS_BASE64})} - from ${CALLERID(num)})
exten => sms,n,Hangup()
exten => _.,1,Set(CALLERID(name)=${CALLERID(num)})
exten => _.,n,Goto(from-trunk,${EXTEN},1)