SIP User's Manual 426 Document #: LTRT-65415
MediaPack Series
Parameter Description
Web/EMS: Tx DTMF Option
[TxDTMFOption]
Determines a single or several preferred transmit DTMF
negotiation methods.
[0] Not Supported = No negotiation - DTMF digits are
sent according to the parameters DTMFTransportType
and RFC2833PayloadType (default).
[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.
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 the voice stream).
When TxDTMFOption is set to 0, the RFC 2833
payload type is set according to the parameter
RFC2833PayloadType for both transmit and receive.
The ini file table parameter TxDTMFOption can be
repeated twice for configuring the DTMF transmit
methods.
This parameter can also be configured per IP Profile,
using the IPProfile parameter (see ''Configuring IP
Profiles'' on page 122).
Web/EMS: Tx DTMF Option Table
[TxDTMFOption]
This ini file 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]
For example:
TxDTMFOption 0 = 1;
TxDTMFOption 1 = 3;
Notes:
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