That is the one, in most centrals that I've been in the Atlas routes alarm DID's out FXS ports and then voice calls are either sent over to a PBX via a PRI or a seperate PRI is used for voice.
Not trying to advertise here, with the Tadiran we have been able to replace both the Atlas and the existing PBX with a unified approach. It makes 2-way alarms easier to handle. I known the Avaya has capabilities to do this, I am wanting to know who else does.


Never blame on malice, what can be adequately attributed to STUPIDITY!!