Version 7.2 655 Mediant 800B Gateway & E-SBC
User's Manual 28. Analog Gateway
28.14.6 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 on page 517), assign
the phone numbers 200 to 204 to the device’s FXO endpoints.
Figure 28-16: Assigning Phone Numbers to FXO Ports
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".
Figure 28-17: FXO Automatic Dialing Configuration
3. In the Tel-to-IP Routing table, enter 10 in the ‘Destination Phone Prefix’ field, and the
IP address of the FXS device (10.1.10.3) in the field ‘IP Address’.
Figure 28-18: FXO Tel-to-IP Routing Configuration
4. In the FXO Settings page (see 'Configuring FXO Parameters' on page 632), set the
parameter ‘Dialing Mode’ to Two Stages (IsTwoStageDial = 1).
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