AudioCodes MP-11x User Manual page 572

Parameter
Web: Max. Flash-Hook Detection
Period [msec]
EMS: Flash Hook Period
[FlashHookPeriod]
DTMF Parameters
EMS: Use End of DTMF
[MGCPDTMFDetectionPoint]
Web: Declare RFC 2833 in SDP
EMS: Rx DTMF Option
[RxDTMFOption]
Tx DTMF Option Table
Web/EMS: Tx DTMF Option
[TxDTMFOption]
User's Manual
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 this parameter to take effect, you need to reset the device.

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.
Defines the supported receive DTMF negotiation method.

[0] No = Don't declare RFC 2833 telephony-event parameter
in SDP.

[3] Yes = (Default) Declare RFC 2833 telephony-event
parameter in SDP.
The device is always receptive to RFC 2833 DTMF relay packets.
Therefore, it is always correct to include the 'telephony-event'
parameter as default in the SDP. However, some devices use the
absence of the 'telephony-event' in the SDP to decide to send
DTMF digits in-band using G.711 coder. If this is the case, you
can set this parameter to 0.
Note: This parameter can also be configured in an IP Profile.
This table parameter configures up to two preferred transmit
DTMF negotiation methods. The format of this parameter is as
follows:
[TxDTMFOption]
FORMAT TxDTMFOption_Index = TxDTMFOption_Type;
[\TxDTMFOption]
Where Type is:

[0] Not Supported = (Default) No negotiation - DTMF digits are
sent according to the parameters DTMFTransportType and
RFC2833PayloadType.

[1] INFO (Nortel) = Sends DTMF digits according to IETF
Internet-Draft draft-choudhuri-sip-info-digit-00.

[2] NOTIFY = Sends DTMF digits according to IETF Internet-
Draft draft-mahy-sipping-signaled-digits-01.
572
MP-11x & MP-124
Description
Document #: LTRT-65432