AudioCodes Mediant 800 - FXO Gateway Configuration; FXS Gateway Configuration

CHAPTER29 Analog Gateway
Mediant 800 Gateway & E-SBC | User's Manual
FXS Gateway Configuration
The following procedure describes how to configure the FXS interface (at the 'remote PBX
extension').
➢ To configure the FXS interface:
1. In the Trunk Group table (see Configuring Trunk Groups), assign the phone numbers 100 to 104
to the device's FXS ports.
2. In the Automatic Dialing table (see Configuring Automatic Dialing), configure automatic dialing
for the FXS ports to dial the FXO endpoints, as shown in the figure below. For example, when
the phone connected to FXS Port #1 off-hooks, the device automatically dials the number
"200".
3. In the Tel-to-IP Routing table (see Configuring Tel-to-IP Routing Rules), enter 20 for the
destination phone prefix and 10.1.10.2 for the IP address of the FXO device.
For the transfer to function in remote PBX extensions, Hold must be disabled at the
FXS device (i.e., Enable Hold = 0) and hook-flash must be transferred from the FXS to
the FXO (HookFlashOption = 4).
FXO Gateway Configuration
The following procedure describes how to configure the FXO interface (to which the PBX is directly
connected).
➢ To configure the FXO interface:
1. In the Trunk Group table page (see Configuring Trunk Groups, assign the phone numbers 200
to 204 to the device’s FXO endpoints.
2. In the Automatic Dialing table, enter the phone numbers of the FXS device in the ‘Destination
Phone Number’ fields. When a ringing signal is detected at Port #1, the FXO device
automatically dials the number "100".
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