AudioCodes Mediant 500 E-SBC, User Manual

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User's Manual 54. Configuration Parameters Reference
Version 6.8 799 Mediant 500 E-SBC
Parameter Description
interfaces).
DTMF Parameters
EMS: Use End of DTMF
CLI: notify-on-sig-end
[MGCPDTMFDetectionPoint]
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.
Web: Declare RFC 2833 in SDP
EMS: Rx DTMF Option
CLI: rfc-2833-in-sdp
[RxDTMFOption]
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.
Web/EMS: 1st Tx DTMF Option /
2nd Tx DTMF Option
CLI: configure voip > gw dtmf-and-
suppl dtmf-and-dialing > dtmf-
options
[TxDTMFOption]
Defines up to two preferred transmit DTMF negotiation
methods.

[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.

[3] INFO (Cisco) = Sends DTMF digits according to Cisco
format.

[4] RFC 2833.

[5] INFO (Korea) = Sends DTMF digits according to Korea
Telecom format.
The format of the ini file table parameter is as follows:
[TxDTMFOption]
FORMAT TxDTMFOption_Index = TxDTMFOption_Type;
[\TxDTMFOption]
For example:
TxDTMFOption 0 = 1;
TxDTMFOption 1 = 3;
Notes:

DTMF negotiation methods are prioritized according to the
order of their appearance.

When out-of-band DTMF transfer is used ( [1], [2], [3], or
[5]), the parameter DTMFTransportType is automatically set
to 0 (DTMF digits are erased from the RTP stream).

When RFC 2833 (4) is selected, the device:
a. Negotiates RFC 2833 payload type using local and
remote SDPs.
b. Sends DTMF packets using RFC 2833 payload type
according to the payload type in the received SDP.
c. Expects to receive RFC 2833 packets with the same
payload type as configured by the parameter
RFC2833PayloadType.
d. Removes DTMF digits in transparent mode (as part of