I have a Norstar Door Opening Controller and a Norstar Door Phone hooked up to our Gate. Is there a way for me to control the gate with a cell phone. I would like to call into the system and be able to open the gate. I have a PRI with 100 DID's. Can I assign a target number to the Door Phone and have it answer and then press the number to open the gate? I also have a Bogen 4 zone paging system. I am using all zones at the moment. I thought I might be able to use my paging system.