Version 5.8 541 October 2009
SIP User's Manual 9. IP Telephony Capabilities
9.20.5 FXS Gateway Configuration
The procedure below describes how to configure the FXS interface (at the 'remote PBX
extension').
¾ To configure the FXS interface:
1. In the ‘Trunk Group Table’ page (refer to , assign the phone numbers 100 to 104 to the
device's endpoints.
Figure 9-55: Assigning Phone Numbers to FXS Endpoints
2. In the ‘Automatic Dialing’ page (refer to ''Automatic Dialing'' on page 213), e
nter the
phone numbers of the FXO device in the ‘Destination Phone Number’ fields. When a
phone connected to Port #1 off-hooks, the FXS device automatically dials the number
‘200’.
Figure 9-56: Automatic Dialing for FXS Ports
3. In the ‘Tel to IP Routing’ page (refer to ''Tel to IP Routing Table'' on page 201), enter
20 for the destinatio
n phone prefix, and 10.1.10.2 for the IP address of the FXO
device.
Figure 9-57: FXS Tel-to-IP Routing Configuration
Note: 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).
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