Version 7.0 943 Mediant 3000
User's Manual 58. Configuration Parameters Reference
Parameter Description
ï‚§
[1] = (Default) DTMF event is reported at the start of a detected
DTMF digit.
Declare 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 the parameter
and for configuring this functionality in the IP Profile table, see
''Configuring IP Profiles'' on page 391.
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.
First Tx DTMF Option
[FirstTxDTMFOption]
Defines the first preferred transmit (Tx) DTMF negotiation method.
ï‚§ [0] Not Supported = (Default) No negotiation - DTMF digits are sent
according to the parameters DTMFTransportType and
RFC2833PayloadType. The RFC 2833 payload type is according to
the RFC2833PayloadType parameter for transmit and receive.
ï‚§ [1] Info NORTEL = Sends DTMF digits according to IETF Internet-
Draft draft-choudhuri-sip-info-digit-00.
ï‚§ [2] NOTIFY = Sends DTMF digits according to IETF Internet-Draft
draft-mahy-sipping-signaled-digits-01.
ï‚§ [3] Info Cisco = Sends DTMF digits according to Cisco format.
ï‚§ [4] RFC 2833 = The device handles DTMF as follows:
Negotiates RFC 2833 payload type using local and remote
SDPs.
Sends DTMF packets using RFC 2833 payload type according
to the payload type in the received SDP.
Expects to receive RFC 2833 packets with the same payload
type according to the RFC2833PayloadType parameter.
Removes DTMF digits in transparent mode (as part of the voice
stream).
ï‚§ [5] Info KOREA = Sends DTMF digits according to Korea Telecom
format.
Notes:
ï‚§ When out-of-band DTMF transfer is used ([1], [2], [3], or [5]), the
DTMFTransportType parameter is automatically set to [0] (DTMF
digits are erased from the RTP stream).
ï‚§ For more information on DTMF transport, see ''Configuring DTMF
Transport Types'' on page 213.
ï‚§ You can also configure the parameter per specific calls, using IP
Profiles (IpProfile_FirstTxDtmfOption). For configuring IP Profiles,
see ''Configuring IP Profiles'' on page 391.
Second Tx DTMF Option
[SecondTxDTMFOption]
Defines the second preferred transmit (Tx) DTMF negotiation method.
The first preferred method is configured by the FirstTxDTMFOption
parameter. For a description of the optional values for the parameter,
see the FirstTxDTMFOption parameter above.
Note: You can also configure the parameter per specific calls, using IP
Profiles (IpProfile_SecondTxDtmfOption). For configuring IP Profiles,
see ''Configuring IP Profiles'' on page 391.
[DisableAutoDTMFMute] Enables the automatic muting of DTMF digits when out-of-band DTMF
transmission is used.