3Com V7122 User Manual page 193

ini File Field Name
Web Parameter Name
EnableForward
[Enable Call Forward]
EnableCallWaiting
[Enable Call Waiting]
Send180ForCallWaiting
HookFlashCode
[Hook-Flash Code]
UseSIPURIForDiversionHea
der
RxDTMFOption
[Declare RFC 2833 in SDP]
V7122 Gateway User Guide
Valid Range and Description
0 = Disable call forward.
1 = Enable call forward service (default).
The gateway does not initiate call forward, it can only respond to call
forward requests.
0 = Disabled.
1 = Enabled (default).
If enabled, when the gateway initiates a Tel to IP call to a destination that is
busy, it plays a Call Waiting Ringback tone to the originator of the call.
The gateway's Call Progress Tones file must include a Call
Waiting Ringback tone.
The EnableHold parameter must be enabled on the called
side.
0 = Use 182 Queued response to indicate a call waiting (default).
1 = Use 180 Ringing response to indicate a call waiting.
Determines the digit pattern used by the PBX to indicate a 'Hook-Flash'
event. When this pattern is detected from the Tel side, the gateway
responds as if a Hook-Flash event occurs and sends an INFO message
indicating 'Hook Flash'. If configured and a Hook-Flash indication is
received from the IP side, the gateway generates this pattern to the Tel
side.
The valid range is a 25-character string.
Sets the URI format in the Diversion header.
0 = 'tel:' (default).
1 = 'sip:'.
Defines the supported Receive DTMF negotiation method.
0 = Don't declare RFC 2833 telephony-event parameter in SDP.
1 = N/A.
2 = N/A.
3 = Declare RFC 2833 'telephony-event' parameter in SDP (default).
The gateway is designed to always be receptive to RFC 2833 DTMF relay
packets. Therefore, it is always correct to include the 'telephony-event'
parameter as a default in the SDP. However some gateways use the
absence of the 'telephony-event' from the SDP to decide to send DTMF
digits inband using G.711 coder, if this is the case you can set
'RxDTMFOption=0'.
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