Hi all, I have a Galaxy 2 alarm system connected to my Asterisk system via an OpenVOX card. Asterisk is configured as an Alarm Receiving Centre, meaning it receives the DTMF messages from the alarm. This mostly works. The big issue is that it gets unreliable in the summer, when the room the server is in gets warm. It usually fails during the afternoon and comes back in the evening or when I open the door. I had a look at improving the cooling and it looks like a bit of a challenge to do that. Then I wondered as to what the issue might be and surmised that it might be the oscillator drifting. Then I wondered if it would be possible to use a more stable, external oscillator? Is that an avenue worth exploring or should I attempt to find a way to cool the card?
hmm
is the alarm system in the same room ?
- yes: could also be the alarm system that is drifting
- no: have you considures using an ATA right next to the alarm system
also how warm is the server room getting ?
Thanks. The alarm is in a different room and cooling the server room does seem to make the issue go away. The room gets up to 30C. Putting an ATA next to the alarm is indeed an interesting idea.
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