Hi, I've been trying to get my ADT alarm panel ( Lynx24R ) to work with asterisk and sipura SPA 2000. So far the alarm company has been recieveing lot of undefined events. Someone suggested I should change communication format to 4x2 instead of default Ademco CID. Unfortantely ADT is reluctant to hand me over the information I need. I can change the communication format on the panel since I already have the manual but I need different alarm reciever's dial number, etc... which ADT says they have but so far have not given it to me. The current setup I have is as follows: House Line -> SIPURA SPA 2000 -> Asterisk PBX -> Asterisk PBX -> Telco end -> Alarm company Basically my house phone line connects to sipura ata which then connects to asterisk PBX on my LAN in the house. From here the local asterisk PBX talks to another PBX I have in the co-location facility which has PRI interface ( the two asterisk boxes talk over IAX channel ). Now I am wondering is there any way for me to pass through contact id information properly to their reciever's end, using this setup since this way I would not need to alter the panel's communication format. I noticed asterisk had "AlarmReceiver" cmd which works with Ademco CID. I am wondering is there any way for me to do this ? Your help is appreciated. Thanks.