For more information videos and installation guides on the dsc alexor alarm system click herefor the alexor brand store connecting the dsc alexor gsmgprs wireless alarm communicator to your alexor alarm system will mean that you can have an extra layer of security on your system allowing it to call out to a pre set list of contacts or an alarm receiving centre should an alarm be triggered the gsm communicator can be used with a pay as you go or pay monthly sim card from any mobile network