MP-1xx SIP User’s Manual 5. Configuring the MP-1xx
Version 4.4 99 March 2005
5.8.9 Configuring the FXO Parameters
Use this screen to configure the gateway’s specific FXO parameters.
To configure the FXO parameters, take these 4 steps:
1. Open the ‘FXO Settings’ screen (Protocol Management menu > FXO); the ‘FXO Settings’
screen is displayed.
Figure
5-26: FXO Settings Screen
2. Configure the FXO parameters according to Table
5-25.
3. Click the Submit button to save your changes.
4. To save the changes so they are available after a power fail refer to Section
5.12 on page
139.
Table
5-25: FXO Parameters (continues on pages 99 to 100)
Parameter Description
Dialing Mode
[IsTwoStageDial]
One Stage [0] = One-stage dialing.
Two Stage [1] = Two-stage dialing (default).
Used for IPMP-10x/FXO gateways calls.
If two-stage dialing is enabled, then the FXO gateway seizes one of the PSTN/PBX lines
without performing any dial, the remote User is connected over IP to PSTN/PBX, and all
further signaling (dialing and Call Progress Tones) is performed directly with the PBX
without the gateway’s intervention.
If one-stage dialing is enabled, then the FXO gateway seizes one of the available lines
(according to Channel Select Mode parameter), and dials the destination phone number
received in INVITE message. Use the ‘Waiting For Dial Tone’ parameter to specify
whether the dialing should come after detection of dial tone, or immediately after seizing
of the line.
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