AudioCodes Mediant 800B User Manual page 842

Parameter
Web: Min. Flash-Hook Detection
Period [msec]
EMS: Min Flash Hook Time
CLI: min-flash-hook-time
[MinFlashHookTime]
Web: Max. Flash-Hook Detection
Period [msec]
EMS: Flash Hook Period
CLI: flash-hook-period
[FlashHookPeriod]
DTMF Parameters
EMS: Use End of DTMF
CLI: notify-on-sig-end
[MGCPDTMFDetectionPoint]
Web: Declare RFC 2833 in SDP
EMS: Rx DTMF Option
CLI: rfc-2833-in-sdp
[RxDTMFOption]
Web/EMS: 1st Tx DTMF Option /
User's Manual
Notes:

The device can interwork DTMF HookFlashCode to SIP
INFO messages with Hook Flash indication (for digital
interfaces).

FXO interfaces support only the receipt of RFC 2833 Hook-
Flash signals and INFO [1] type.

FXS interfaces send Hook-Flash signals only if the
EnableHold parameter is set to 0.
Defines the minimum time (in msec) for detection of a hook-
flash event. Detection is guaranteed for hook-flash periods of at
least 60 msec (when setting the minimum time to 25). Hook-
flash signals that last a shorter period of time are ignored.
The valid range is 25 to 300. The default is 300.
Notes:

This parameter is applicable only to FXS interfaces.

It's recommended to reduce the detection time by 50 msec
from the desired value. For example, if you want to set the
value to 200 msec, then enter 150 msec (i.e., 200 minus 50).
Defines the hook-flash period (in msec) for both Tel and IP
sides (per device). For the IP side, it defines the hook-flash
period that is reported to the IP.
For the analog side, it defines the following:

FXS interfaces:

Maximum hook-flash detection period. A longer signal is
considered an off-hook or on-hook event.

Hook-flash generation period upon detection of a SIP
INFO message containing a hook-flash signal.

FXO interfaces: Hook-flash generation period.
The valid range is 25 to 3,000. The default is 700.
Notes:

For FXO interfaces, a constant of 100 msec must be added
to the required hook-flash period. For example, to generate a
450 msec hook-flash, set this parameter to 550.

This parameter can also be configured in a Tel Profile.
Determines when the detection of DTMF events is notified.

[0] = DTMF event is reported at the end of a detected DTMF
digit.

[1] = (Default) DTMF event is reported at the start of a
detected DTMF digit.
Global parameter that enables the device to declare the RFC
2833 'telephony-event' parameter in the SDP. You can also
configure this functionality per specific calls, using IP Profiles
(IpProfile_RxDTMFOption). For a detailed description of this
parameter and for configuring this functionality in the IP Profile
table, see ''Configuring IP Profiles'' on page 304.
Note: If this functionality is configured for a specific IP Profile,
the settings of this global parameter is ignored for calls
associated with the IP Profile.
Defines up to two preferred transmit DTMF negotiation
842
Mediant 800B Gateway and E-SBC
Description
Document #: LTRT-10286