3Com VCX V7111, Руководство пользователя

Страница: 99 / 464

3Com
®
VCX V7111 VoIP Gateway User Guide
99
Table 24
Supplementary Services Parameters
Parameter Description
Enable Hold
[EnableHold]
No [0] = Disable the Hold service.
Yes [1] = Enable the Hold service (default).
If the Hold service is enabled, a user can activate Hold (or Unhold) using the
hook-flash. On receiving a Hold request, the remote party is put on-hold and
hears the hold tone.
To use this service, the gateways at both ends must support this
option.
Hold Format
[HoldFormat]
Determines the format of the hold request.
0.0.0.0
[0] = The connection IP address in SDP is 0.0.0.0 (default).
Send Only [1] = The last attribute of the SDP contains the following
a=sendonly.
Enable Transfer
[EnableTransfer]
No [0] = Disable the call transfer service.
Yes [1] = Enable the call transfer service (using REFER) (default).
If the Transfer service is enabled, the user can activate Transfer using hook-
flash signaling. If this service is enabled, the remote party performs the call
transfer.
To use this service, the gateways at both ends must support this
option.
To use this service, set the parameter Enable Hold to Yes.
Transfer Prefix
[xferPrefix]
Defined string that is added, as a prefix, to the transferred / forwarded called
number, when REFER / 3xx message is received.
The number manipulation rules apply to the user part of the REFER-
TO / Contact URI before it is sent in the INVITE message.
The xferprefix parameter can be used to apply different manipulation
rules to differentiate the transferred / forwarded number from the
original dialed number.
Enable Call Forward
[EnableForward]
No [0] = Disable the Call Forward service.
Yes
[1]
= Enable Call Forward service (using REFER) (default).
For FXS gateways a Call Forward table must be defined to use the Call
Forward service.
To define the Call Forward table, see
Generate Caller ID to Tel .
To use this service, the gateways at both ends must support this
option.