Table 5-18: Fxo Parameters (Continues On Pages 128 To 130) - AudioCodes Mediant 1000 User Manual

SIP User's Manual
Table 5-18: FXO Parameters (continues on pages 127 to 129)
Parameter
Dialing Mode
[IsTwoStageDial]
Waiting For Dial Tone
[IsWaitForDialTone]
Time to Wait before Dialing
[msec]
[WaitForDialTime]
Ring Detection Timeout
[sec]
[FXOBetweenRingTime]
Version 5.0
Description
One Stages [0] = One-stage dialing.
Two Stages [1] = Two-stage dialing (default).
Used for IP FXO modules calls.
If two-stage dialing is enabled, then the FXO module 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 module 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.
No [0] = Don't wait for dial tone.
Yes [1] = Wait for dial tone (default).
Used for IP Mediant 1000/FXO modules, when 'One Stage Dialing' is enabled.
If 'wait for dial tone' is enabled, the FXO module dials the phone number (to the
PSTN/PBX line) only after it detects a dial tone.
Note 1: The correct dial tone parameters should be configured in the Call
Progress Tones file.
Note 2: It can take the gateway 1 to 3 seconds to detect a dial tone (according to
the dial tone configuration in the Call Progress Tones file).
If 'Waiting For Dial Tone' is disabled, the FXO module immediately dials the phone
number after seizing the PSTN/PBX line, without 'listening' to dial tone.
Digital: Determines the delay after hook-flash is generated and dialing is begun.
Applies to call transfer (TrunkTransferMode = 3) on CAS gateways.
Analog: Determines the delay before the gateway starts dialing on the FXO line in
the following scenarios (applicable only to FXO modules):
The delay between the time the line is seized and dialing is begun, during the
establishment of an IP Tel call.
Note: Applicable only to FXO modules for single stage dialing, when waiting
for dial tone (IsWaitForDialTone) is disabled.
The delay between the time when Wink is detected and dialing is begun,
during the establishment of an IP Tel call (for DID lines, EnableDIDWink =
1).
For call transfer. The delay after hook-flash is generated and dialing is begun.
The valid range (in milliseconds) is 0 to 20,000 (i.e., 20 seconds). The default
value is 1,000 (i.e., 1 second).
Note: Applicable only to FXO modules for Tel IP calls.
The Ring Detection timeout is used differently for normal and for automatic dialing.
If automatic dialing is not used, and if Caller ID is enabled, then the FXO module
seizes the line after detection of the second ring signal (allowing detection of caller
ID, sent between the first and the second rings). If the second ring signal doesn't
arrive for 'Ring Detection Timeout' the gateway doesn't initiate a call to IP.
When automatic dialing is used, the FXO module initiates a call to IP when ringing
signal is detected. The FXO line is seized only if the remote IP party answers the
call. If the remote party doesn't answer the call and the ringing signal stops for
'Ring Detection Timeout', the FXO module Releases the IP call.
Usually set to a value between 5 and 8.
The default is 8 seconds.
127
5. Web Management
December 2006