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bthornhill
join:2004-05-10
 ·voip.ms
| Re: [Vonage] Vonage And ADT Issue said by eddiyer:
rattili,
I work for an alarm company as a service tech, and I have Vonage as my only home phone, my alarm system works just fine with Vonage with an exception, I have my alarm communicate in 10pps 1400Hz, with a 4X2 reporting format.
It's hard to imagine that a 4/2 format would work on VOIP. It's even harder to imagine that a central station in this day-and-age would still want a sub communicating in a pulsed format!
I tried ContactID on my system and there was too much echo in the line for the DTMF to transmit correctly. I was able to change the format over to SIA (generally acknowledged to be the more robust format) and it worked no problem. SIA is a "FSK" format (i.e. modem bursts).
To the best of my knowledge, ADEMCO systems cannot xmit in SIA. | |
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voiplover
Premium
join:2004-05-28
Portsmouth, NH
·callwithus
·Axvoice
1 edit | Re: [Vonage] Vonage And ADT Issue If you want your alarm system to call for help, use a pots line
If you need to use a Voip line than ask your alarm company to use 4+2 format with your system.
FC stands for failure to communicate and with the DSC receiver that most monitoring stations that are now handling ADT's alarm signals, they aren't sending the kiss off signal to the subscribers alarm panel due to timing corrupted issues or lost packets. The reason why 4+2 has a better chance of completion is simply because it is pulsing out each digit of the signal. Contact ID is about a 4 second transmission sequence compared a 9 second transmission of 4+2 @ 20pps (~13 seconds completed). 4+2 @ 10pps has an even better chance but takes almost twice as long. Also your voip call is only going to be as good as the weakest link in your connection.
3+1, 4+1, 4+2, silent night slow 10pps and silent night fast 20pps (Napco actually invented 4+2) will probably be the up coming standard again in the alarm industry. If you keep up with with the NFP and your life safety code you should know that SIA is the approved format. Contact ID was designed for wantabe companies to make monitoring stations profitable. Guess what, It's killing them.
The saving feature for voip is providers implementing fax. When the sip server hears a fax tone or anything close (hand shake for 4+2) it will change the codec to 711 high bandwidth and hopefully allow the transmission to be accomplished.
Ademco (now owned by Honeywell) receivers and transmitters have to be able to use SIA to get the fire ratings. They may not offer the programming info in the manuals that you are receiving.
It is in your best interest to standardize on using 4+2 format at least as a back up.
RF (Radio) w/ telco backup is the only wide spread solution.
Just hanging in there to see what happens! | |
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bthornhill
join:2004-05-10 | Re: [Vonage] Vonage And ADT Issue There is no way that 3+1, 4+1 etc will ever become standard again. | |
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voiplover
Premium
join:2004-05-28
Portsmouth, NH | Re: [Vonage] Vonage And ADT Issue I agree. I just left them in there because of the type of format. 4+2 will only be a format worth holding on to.
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