Version 7.2  641  Mediant 1000B 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 503), 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 618), set the 
parameter ‘Dialing Mode’ to Two Stages (IsTwoStageDial = 1).