3Com V7122 User Manual page 194

ini File Field Name
Web Parameter Name
TxDTMFOption
[DTMF RFC2833
Negotiation]
DisableAutoDTMFMute
EnableReasonHeader
[Enable Reason Header]
194
Valid Range and Description
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).
2 (NOTIFY) = Sends DTMF digits according to <draft-mahy-sipping-
signaled-digits-01>.
4 (RFC 2833).
DTMF negotiation methods are prioritized according to the
order of their appearance.
When out-of-band DTMF transfer is used (1, 2 or 3), the
parameter 'DTMFTransportType' is automatically set to 0
(DTMF digits are erased from the RTP stream).
When RFC 2833 (4) is selected, the gateway:
•
Negotiates RFC 2833 Payload Type (PT) using local and
remote SDPs.
•
Sends DTMF packets using RFC 2833 PT according to
the PT in the received SDP.
•
Expects to receive RFC 2833 packets with the same PT
as configured by the parameter 'RFC2833PayloadType'.
•
Uses the same PT for send and receive if the remote party
doesn't include the RFC 2833 DTMF PT in its SDP.
When TxDTMFOption is set to 0, the RFC 2833 PT is set
according to the parameter 'RFC2833PayloadType' for both
transmit and receive.
ini file note: The DTMF transmit methods are defined using a
repetition of the same (TxDTMFOption) parameter (up to five
options can be provided).
Enables / disables the automatic mute of DTMF digits when out-of-band
DTMF transmission is used.
0 = Auto mute is used (default).
1 = No automatic mute of in-band DTMF.
When 'DisableAutoDTMFMute=1', the DTMF transport type is set
according to the parameter 'DTMFTransportType' and the DTMF digits
aren't muted if out-of-band DTMF mode is selected ('TxDTMFOption =1, 2
or 3'). This enables the sending of DTMF digits in-band (transparent of RFC
2833) in addition to out-of-band DTMF messages.
Usually this mode is not recommended.
Enables or disables the usage of the SIP Reason header.
Valid options include:
0 = Disable
1 = Enable (default)
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