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cisconz
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  Reply # 1609911 11-Aug-2016 07:54
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meowsqueak:

 

timmmay:

 

cellular is probably going to be more reliable, and mine uses so little data it actually expires before it runs out.

 

 

Do you know if there's a "standard" interface in play here, that would allow me to set up my own cellular (or even IP) "bridge", and then engage any security company to do the monitoring using my own choice of bridge? Or does the bridge need to be supplied and installed by each security company, to comply with their proprietary configuration?

 

Just trying to work out where the ownership/configuration "boundary" is between property owner and security company.

 

 

There are multiple standards - most alarms use ContactID for POTS (High speed DTMF with specific Engage and kissoff tones that compressed codecs play with)

 

For IP, you can get an alarm receiver that will communicate via POTS to the alarm and convert to an IP string that is then sent over the internet - this will work on almost any alarm.

 

The IP modules are panel specific, but allow for 2 way communication.

 

Cellular modules usually connect in 1 of the above 2 ways, however don't usually allow 2 way comms.





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  Reply # 1609966 11-Aug-2016 10:08
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Manormachine:

You can find the DTMF settings in the setup of the individual phonenumbers. Maybe you need to activate the 'advanced mode' to get to see all menu items though. As for the codec I think the FRITZ box usually uses whatever you configure in your SIP provider setup. I specify the codecs in my 2talk setup and when I check the transmission details the codecs used match.

 

Ah, thank you, that's where it is. I changed it to 'inband' and the call log showed a 2 minute call from the alarm to the monitoring company. Then they called me to say that it was working and they now consider my system as 'active'. So that's progress.

 

So, although it's communicating over ATA, it is at least doing something. What I will do is try this out for a while and if it proves unreliable or impractical I'll then consider a GSM or IP-based connection instead.

 

Thank you everyone.

 

 


cisconz
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  Reply # 1609969 11-Aug-2016 10:11
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meowsqueak:

 

Ah, thank you, that's where it is. I changed it to 'inband' and the call log showed a 2 minute call from the alarm to the monitoring company. Then they called me to say that it was working and they now consider my system as 'active'. So that's progress.

 

So, although it's communicating over ATA, it is at least doing something. What I will do is try this out for a while and if it proves unreliable or impractical I'll then consider a GSM or IP-based connection instead.

 

Thank you everyone.

 

 

Make sure you are using G711U or G711A (PCMU PCMA) Only - otherwise you will get duplicate signals if the Kiss Off tone is compressed at all.





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  Reply # 1609971 11-Aug-2016 10:15
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cisconz:

 

 

 

Make sure you are using G711U or G711A (PCMU PCMA) Only - otherwise you will get duplicate signals if the Kiss Off tone is compressed at all.

 

 

Unfortunately I'm not seeing an option to set that.

 

However, according to the AVM FAQ:

 

> The FRITZ!Box uses the codecs G.711 and G.722 whenever possible.

 

And in the daily log that it sends me each midnight, I see that it's using G.711 for all outgoing voice calls.

 

 

 

 

 

 


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  Reply # 1610226 11-Aug-2016 17:32
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meowsqueak:

 

> ... the recommendation around here is basically don't try and connect an alarm to ATA. 

 

If this is the answer, and someone can corroborate, then I'll accept this and look at the IP module instead, but do you know why this is the recommendation?

 

 

 

 

Im an ex alarm tech, because of the way the DTMF signals go through and how the alarm EXPECTS a KISS-ON before it sends the information the ATA ignores this as its only expecting vavid numbers 0-9 and voice.

 

Ditch the idea and go Cellular if security is important, these guys have a cellular product that is compatable with all monotoring stations http://radionetmonitoring.co.nz/ its an extra ten dollars usually on top of your monthly fee.






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