User`s manual

Version 5.4 249 May 2008
SIP User's Manual 3. Web-Based Management
Table 3-58: FXO Parameters Description
Parameter Description
Dialing Mode
[IsTwoStageDial]
Determines the dialing mode for IP-to-Tel (FXO) calls.
 [0] One Stage = One-stage dialing.
 [1] Two Stages = Two-stage dialing (default).
If two-stage dialing is enabled, the device seizes one of the PSTN/PBX
lines without performing any dialing, connects the remote IP user to the
PSTN/PBX, and all further signaling (dialing and Call Progress Tones) is
performed directly with the PBX without the device's intervention.
If one-stage dialing is enabled, the device seizes one of the available lines
(according to the parameter ChannelSelectMode), and dials the destination
phone number received in the INVITE message. Use the parameter
IsWaitForDialTone to specify whether the dialing must start after detection
of the dial tone or immediately after seizing the line.
Waiting For Dial Tone
[IsWaitForDialTone]
Determines whether the device waits for a dial tone before dialing the
phone number for IP-to-Tel (FXO) calls.
 [0] No = Don't wait for dial tone.
 [1] Yes = Wait for dial tone (default).
When one-stage dialing and this parameter are enabled, the device dials
the phone number (to the PSTN/PBX line) only after it detects a dial tone.
If this parameter is disabled, the device immediately dials the phone
number after seizing the PSTN/PBX line without 'listening' for a dial tone.
Notes:
 The correct dial tone parameters should be configured in the Call
Progress Tones file.
 The device may take 1 to 3 seconds to detect a dial tone (according to
the dial tone configuration in the Call Progress Tones file).
Time to Wait before
Dialing [msec]
[WaitForDialTime]
For Digital: Determines the delay after hook-flash is generated and until
dialing begins. Applies to call transfer (i.e., the parameter
TrunkTransferMode is set to 3) on CAS devices.
For Analog: Determines the delay before the device starts dialing on the
FXO line in the following scenarios:
 The delay between the time the line is seized and dialing begins during
the establishment of an IP-to-Tel call.
Note: Applicable only for one-stage dialing, when the parameter
IsWaitForDialTone is disabled.
 The delay between detection of a Wink and the start of dialing during
the establishment of an IP-to-Tel call (for DID lines, EnableDIDWink is
set to 1).
 For call transfer - the delay after hook-flash is generated and dialing
begins.
The valid range (in milliseconds) is 0 to 20,000 (i.e., 20 seconds). The
default value is 1,000 (i.e., 1 second).