Using OBI110 with alarm system ?
HGWells:
The alarm system I have has been used with Sunrocket and Charter's internet phone system. I have made a quick test and it did not seem to work.
I will try fidling with it early next week. I am using Google voice.
Is any one else using their OBI 110 with an alarm system ?
Any paramiters that you had to play with ?
mykmayk:
when i was using pap2t before, i used it with gizmo5 or ideasip or iptel for my alarm monitoring system since those allowed outgoing toll-free calls.
i remember that some didn't work right off the bat. i had to play with the DTMF selections to get the correct option to work with the remote monitoring system.
you can probably do the same with the obi unit.
in this topic http://www.obitalk.com/forum/index.php?topic=222.0, DTMF selection was discussed:
"Changing the Phone port DTMFRxMode from "Hardware" to "Software" solved the problem."
DrZKrewe:
Has anyone been successful with using the OBi 110 with an alarm system? If so, did you have to tweak anything to get it working?
HGWells, did you try what mykmayk suggested? Results?
Dixon:
GV on SP1 didn't work with my Ademco Lynx. Alarm co. said that no valid data was recieved after a test.
I have seen that link before about the DTMF software before. I have not tried it yet, but I will soon.
Anyone know any other tweaks like codecs?
SteveInWA:
HGWells, see my post here:
http://www.obitalk.com/forum/index.php?topic=305.msg3384#msg3384
Alarm panels, like the Ademco units, communicate with the alarm company's monitoring center over analog telephone lines using a method similar (but not identical) to a dial-up data modem or fax machine. Your alarm panel dials a phone number to reach the alarm center. Then, when the call is answered, it listens for a handshake tone, then it sends the actual alarm message (usually as DTMF tones), and then waits for an acknowledgement via a "kissoff", or "yes, I got your message" tone. Therefore, the calls depend on a high-quality audio signal over the line. Your issue may be related to the DTMF (Touch Tone) method used by the OBi, and you can try changing the setting to send them either way. But, it's more likely caused by whatever codec is being used with Google Chat/Google Voice, or packet loss or "jitter" over the Internet. The best codec for audio quality (human voice or modem jabber) is G.711u or G.711a (PCM).
Editorial: I just cannot imagine my personal/family safety depending on Google's voice service for alarm monitoring. There are too many analog-to-digital-to-analog-to-digital conversions between your alarm panel and the alarm company when using even the best VoIP. My advice: get a quality VoIP service or a traditional telco line for your alarm, or use a cellular or IP-based solution from your alarm company.
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