43.10.7 Tone Parameters
This subsection describes the device's tone parameters.
43.10.7.1 Telephony Tone Parameters
The telephony tone parameters are described in the table below.
Table 43-51: Tone Parameters
Parameter Description
Web: SIP Hold Behavior
[SIPHoldBehavior]
Enables the device to handle incoming re-INVITE messages
with the "a=sendonly" attribute in the SDP, in the same way
as if an "a=inactive" is received in the SDP. When enabled,
the device plays a held tone to the Tel phone and responds
with a SIP 200 OK containing the "a=recvonly" attribute in the
SDP.
 [0] Disable (default)
 [1] Enable
Web/EMS: Dial Tone Duration [sec]
[TimeForDialTone]
Defines the duration (in seconds) that the dial tone is played.
FXS interfaces play the dial tone after the phone is picked up
(off-hook). FXO interfaces play the dial tone after the port is
seized in response to ringing (from PBX/PSTN).
The valid range is 0 to 60. The default time is 16.
Notes:
 During play of dial tone, the device waits for DTMF digits.
 This parameter is not applicable when Automatic Dialing is
enabled.
Web/EMS: Stutter Tone Duration
[StutterToneDuration]
Defines the duration (in msec) of the confirmation tone. A
stutter tone is played (instead of a regular dial tone) when a
Message Waiting Indication (MWI) is received. The stutter
tone is composed of a confirmation tone (Tone Type #8),
which is played for the defined duration (StutterToneDuration)
followed by a stutter dial tone (Tone Type #15). Both these
tones are defined in the CPT file.
The range is 1,000 to 60,000. The default is 2,000 (i.e., 2
seconds).
Notes:
 This parameter is applicable only to FXS interfaces.
 If you want to configure the duration of the confirmation
tone to longer than 16 seconds, you must increase the
value of the parameter TimeForDialTone accordingly.
 The MWI tone takes precedence over the call forwarding
reminder tone. For more information on MWI, see
Message Waiting Indication on page 251.
Web: FXO AutoDial Play BusyTone
EMS: Auto Dial Play Busy Tone
[FXOAutoDialPlayBusyTone]
Determines whether the device plays a busy / reorder tone to
the PSTN side if a Tel-to-IP call is rejected by a SIP error
response (4xx, 5xx or 6xx). If a SIP error response is
received, the device seizes the line (off-hook), and then plays
a busy / reorder tone to the PSTN side (for the duration
defined by the parameter TimeForReorderTone). After
playing the tone, the line is released (on-hook).
 [0] = Disable (default)
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