Obi110 device with home security system
Wilson:
I've googled for a while now and can't seem to find the optimum setting that will enable my obi110 device to play nice with my home security system. I've tried changing DTMF method to Inband as well as changing the DTMFRxMode to Software with no luck. I've also tried using SP2 to dial out through another SIP service with the same result. I can see the system dialing out the number of the monitoring company and what sounds like fax tones when I pick up an extension line but the monitoring company does not receive the signal. The alarm unit then disconnects and retries to connect. This goes into a loop and I finally end up physically unplugging the device from the power outlet and disconnecting the phone cord to end the cycle.
Any thoughts on what else could be configured to get this to work? I'd prefer not to have to switch to another monitoring service or go back to Time Warner Cable, the phone service I had previously when I had no issues with the home alarm system. Any help would be much appreciated. Otherwise I think the Obi110 is a phenomenal device.
MurrayB:
There are many posts on this forum pertaining to using the the Obi with a security system. Search the forum and you will have a myriad of info.
Central station monitoring requires a POTS or cable company supplied telephone line to properly exchange the data with your alarm panel. Internet providers such as SIP or Google Voice will not work due to the way the internet passes the data.
In addition, for your system to maintain integrity it should be connected as follows:
If your security system was properly installed the incoming POTS line should go to an RJ-31X jack that connects to your security system and your phone jacks. The RJ-31X jack allows the security system to hang up any phones that are off hook and seize the line so an alarm can be transmitted to the monitoring station. Remove the connection to your phone jacks that go to the RJ-31X and replace that connection to the Line output of the Obi 110. The wires that you removed from the RJ-31X that connect to your phone jacks goes to the Phone connection on the Obi 110. This will maintain the integrity of your security system and all your phone jacks will be connected to the Obi. Be careful not to reverse the Line and the Phone connections or you will probably fry the Obi.
Good luck!
Rick:
Exactly MurrayB!
MurrayB:
Thank you Rick!
Wilson:
The RJ-31X jack was installed when I had my security system setup to work with my previous Time Warner service which is what they call digital phone. It was not a traditional POTS line but it worked with my home security system. All I've done is cut TWC and install the OBI device to work with GV and another SIP provider for the e911 service. The alarm unit and OBI device are in two different locations of my home so I can't run wire directly from the alarm to the OBI. It certainly sounds like the TWC digital service was more compatible with my system. Though digital, not analog POTS, TWC still worked. They must have been using a different codec or handling the communication with my security device differently. I thought the answer would lie in adjusting the codecs or other device settings within the Obitalk portal to make the Obi behave similarly to the TWC digital service when communicating with the alarm system.
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