MP-1xx SIP
MP-1xx SIP User’s Manual 100 Document #: LTRT-65404
Table 5-25: FXO Parameters (continues on pages 99 to 100)
Parameter Description
Waiting For Dial Tone
[IsWaitForDialTone]
No [0] = Don’t wait for dial tone.
Yes [1] = Wait for dial tone (default).
Used for IPMP-1xx/FXO gateways, when ‘One Stage Dialing’ is enabled.
If “wait for dial tone” is enabled, the FXO gateway 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 gateway immediately dials the phone
number after seizing the PSTN/PBX line, without ‘listening’ to dial tone.
Time to Wait before Dialing
[msec]
[FXOWaitForDialTime]
Delay (in milliseconds) between the time the line is seized and dialing is begun.
The default is 1000 msec.
Note: Applicable only to MP-10x/FXO for single stage dialing, when waiting for dial tone
is disabled.
Ring Detection Timeout [sec]
[FXOBetweenRingTime]
Note: Applicable only to MP-10x/FXO gateways for TelIP 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 gateway 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 gateway 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 gateway Releases the IP call.
Usually set to a value between 5 to 8.
The default is 8 seconds.
Reorder Tone Duration [sec]
[TimeForReorderTone]
Busy or Reorder tone duration (seconds) the FXO gateway plays before releasing the
line.
The valid range is 0 to 100. The default is 10 seconds.
Usually, after playing a Reorder / Busy tone for the specified duration, the FXS gateway,
starts playing an Offhook Warning tone.
Note 1: Selection of Busy or Reorder tone is performed according to the release cause
received from IP.
Note 2: Refer also to the parameter ‘CutThrough’ (described in Table 5-5).
Answer Supervision
[EnableVoiceDetection]
Yes [1] = FXO gateway sends 200 OK (to INVITE) message when speech/fax/modem
is detected.
No [0] = 200 OK is sent immediately after the FXO gateway finishes dialing (default).
Note 1: To activate this feature set “DSPVersionTemplateNumber” parameter to 2 or 3.
Usually this feature is used only with early media establish voice path before the call is
answered.
Note 2: This feature is applicable only to ‘One Stage’ dialing.
Rings before Detecting Caller
ID
[RingsBeforeCallerID]
Sets the number of rings before the gateway starts detection of Caller ID (FXO only).
0 [0]= Before first ring.
1 [1]= After first ring (default).
2 [2]= After second ring.
SendMetering2IP
[Send Metering Message to
IP]
No [0] = Disabled (default).
Yes [1] = FXO gateways send a metering tone Info message to IP on detection of
12/16 kHz metering pulse. FXS gateways generate the 12/16 kHz metering tone on
reception of a metering message.
Note 1: Suitable (12 kHz or 16 kHz) coeff file must be used for both FXS and FXO
gateways. The ‘MeteringType’ parameter must be defined in both FXS/FXO gateways.
Note 2: The proprietary metering tone Info message is shown in Section
8.8 on page
159.
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