3Com V7111 - VCX 4 Channels Analog FXO Media Gateway User Manual page 85

SIP Parameters
Table 19
INI File Field Name
*
GUI Parameter Name
IsWaitForDialTone
FXOWaitForDialTime
EnableSilenceDisconnect
FarEndDisconnectSilencePeriod
MaxDigits
(Max Digits in Phone Number)
TimeBetweenDigits
(Interdigit Timeout [seconds])
IsDTMFUsed
(Use INFO for DTMF)
3Com VCX V7111 VoIP SIP Gateways User Manual
Valid Range and Description
0 = do not wait for dial tone
1 = Wait for dial tone (default)
Used for VCX V7111 FXO, for One Stage Dialing.
If IsWaitForDialTone = 0, VCX V7111 FXO dials phone number
immediately after seizing the PSTN/PBX line, without listening to
dial tone.
If IsWaitForDialTone = 1, VCX V7111 FXO dials phone number
only after it detects a dial tone (it can take 3-5 seconds to detect a
dial tone).
The correct dial tone parameters should be configured in call
progress tone file.
FXO dialing timeout [in ms], after seizing the line and before start
dialing. (Default =1000)
Applicable for VCX V7111 FXO for single stage dialing.
1 = Enables FXO Gateways to disconnect calls which have silence
in both directions for more than FarEndDisconnectSilencePeriod
consecutive seconds.
0 = Feature disabled (default)
Duration of silence period (in seconds) prior to call disconnection.
(Default = 120). Applicable to FXO Gateways, which use DSP
templates 3 or 4.
Range 10–1000 seconds, with a 5 seconds deviation.
2 – 19 (default 4). Maximum number of digits that can be dialed.
Dialing ends when maximum number of digits dialed or timeout
between digits expired (TimeBetweenDigits parameter), or # is
dialed.
0 – 5 (default 4) Inter-digit timeout in seconds, used to terminate
dialed numbers.
0 = not used
1 = INFO message is used to transfer DTMF digits, implementing
IETF draft draft-choudhuri-sip-info-digit-00
To use out of band DTMF transfer, disable in band DTMF
(DTMFTransportType=0, erase digit and do not relay).
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