Door Phones Overview; Station Port (Fxs) Door Phone Support; Trunk Port (Fxo) Door Phone Support - AT&T SB67010 PSTN Installation Manual

Synapse Installation Guide

Door Phones Overview

Door phones and their associated door-entry mechanisms have become a common
accessory in business phone systems. Door phone systems provide an easy method for
Deskset users to attend to someone who is present at a door elsewhere. Synapse
supports two types of door phones: Station Port (FXS) and Trunk Port (FXO). The system
lets you select which Desksets will be notified by the door phone.
A Deskset user can send DTMF digits from the Deskset to the door phone to activate
associated door-latch and relay mechanisms. How the door phone operates using a
Deskset and the method to control a door latch varies with the door phone model.

Station Port (FXS) Door Phone Support

This type of door phone emulates a regular analog phone and can be connected to either
FXS1 or FXS2 of a Synapse SB67050 ATA as shown in Figure 8. The ATA supports a
feature called Private Line Automatic Ringdown (PLAR) for single-button door phones.
With PLAR configured in Synapse, when the door phone goes off-hook it will ring one or
more Synapse Deskset(s). Any Synapse extension can call the associated extension of the
ATA port connected to the door phone.
You can configure PLAR to ring either a single extension or a group of extensions (a Ring
Group) when the door phone goes off hook.

Trunk Port (FXO) Door Phone Support

You can connect a Trunk Port (FXO) door phone to any one of the four Line (FXO) ports
on a Synapse SB67010 PSTN Gateway, as shown in Figure 9. The FXO door phone can
be configured to call either a single extension or a group of extensions (a Ring Group).
For more information about configuring an FXO door phone, see
Port (FXO) Door Phone" on page
In Call Appearance mode, it is recommended to exclude the door phone line from the
Default Routing Priority for outbound calls on the WebUI Dial Plan Settings page. This
will prevent Desksets from using the door phone line for outbound calls. In any case, the
door phone should be connected to the last, or closest to last, line of the last Gateway
to limit the chance of the door phone line being seized for outbound calls.
Installation
ATA FXS 1 & FXS 2
FXS Door Phone
Figure 8. Station Port (FXS) Door Phone Connection
82.
26
Back to Contents
"Configuring a Trunk