SMS UDH messages

• Page on aa.net.uk
• Page on a&a-asterisk wiki

Example:

curl --silent --get --form-string \
   iccid=8944200000000000000 \
   --form-string password=secret \
       --form-string udh="0401028001" \
       --form-string message="You have voicemail" \
       --form-string originator=12345 \
   http://sms.aa.net.uk/sms.cgi
SMS message to 8944200000000000000
OK: Queued