Thanks for the reply, one of these....
http://www.allsecurityelectronics.net/store/pc/SLe-GSM-3-4G-NAPCO-StarLink-Downloadable-GSM-Alarm-Communicator--477p21458.htm?gdftrk=gdfV25688_a_7c2130_a_7c8081_a_7cSLe_d_GSM_d_3_a2f_4G
Not sure if the link will work, but it is a Napco SLe-GSM-3/4G...
...