3Com VCX V7122 User Manual page 110

ini File Field Name
*
Web Parameter Name
TxDTMFOption
[DTMF RFC2833
Negotiation]
IsDTMFUsed
[Use Out-of-Band DTMF]
OutOfBandDTMFFormat
[Out-of-Band DTMF
Format]
DisableAutoDTMFMute
MaxActiveCalls
[Max Number Of Active
Calls]
MaxCallDuration
[Max Call Duration (sec)]
110
Valid Range and Description
0 = No negotiation, DTMF digit is sent according to the "DTMFTransportType"
parameter (default).
4 = Enable RFC 2833 payload type (PT) negotiation.
Note 1: This parameter is applicable only if "IsDTMFUsed=0" (out-of-band
DTMF is not used).
Note 2: If enabled, the gateway:
Negotiates RFC 2833 payload type using local and remote SDPs.
Sends DTMF packets using RFC 2833 PT according to the received SDP.
Expects to receive RFC 2833 packets with the same PT as configured by the
"RFC2833PayloadType" parameter.
Note 3: If the remote party doesn't include the RFC 2833 DTMF relay payload
type in the SDP, the gateway uses the same PT for send and for receive.
Note 4: If TxDTMFOption is set to 0, the RFC 2833 payload type is set
according to the parameter 'RFC2833PayloadType' for both transmit and
receive.
Use out-of-band signaling to relay DTMF digits.
0 = Disable, DTMF digits are sent according to DTMFTransportType
parameter (default).
1 = Enable sending DTMF digits within INFO or NOTIFY messages.
When out-of-band DTMF transfer is used DTMFTransportType is automatically
set to 0.
The exact method to send out-of-band DTMF digits.
1 = INFO format (Nortel)
2 = INFO format (Cisco) - (default)
3 = NOTIFY format <draft-mahy-sipping-signaled-digits-01.txt>
Note 1: To use out-of-band DTMF, set "IsDTMFUsed=1" or "Enable DTMF =
yes".
Note 2: When using out-of-band DTMF, the "DTMFTransportType" parameter
is automatically set to 0, to erase the DTMF digits from RTP path.
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 ('IsDTMFUsed =1'). This enables the sending
of DTMF digits in-band (transparent of RFC 2833) in addition to out-of-band
DTMF messages.
Note: Usually this mode is not recommended.
Defines the maximum number of calls that the gateway can have active at the
same time. If the maximum number of calls is reached, new calls are not
established.
The default value is max available channels (no restriction on the maximum
number of calls). The valid range is 1 to 240.
Defines the maximum call duration in seconds. If this time expires, both sides
of the call are released (IP and Tel).
The default time is 0 seconds (no limitation).
3Com VCX V7122 SIP VoIP Gateway User Manual