Version 6.4 343 March 2012
SIP User's Manual 18. GW and IP to IP
18.6.14.6 FXO Gateway Configuration
The procedure below 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 Group Table on page 251,
assign the phone numbers 200 to 204 to the device’s FXO endpoints.
Figure 18-31: Assigning Phone Numbers to FXO Ports
2. In the Automatic Dialing page, 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 18-32: FXO Automatic Dialing Configuration
3. In the Outbound IP Routing Table page, 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 18-33: FXO Tel-to-IP Routing Configuration
4. In the FXO Settings page (see 'Configuring FXO Parameters' on page 324), set the
parameter ‘Dialing Mode’ to Two Stages (IsTwoStageDial = 1).
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