User`s manual
MediaPack
SIP User's Manual 84 Document #: LTRT-65408
2. Configure the supplementary services parameters according to Table 5-9.
3. Click the Submit button to save your changes, or click the Subscribe for MWI or Un-
Subscribe for MWI buttons to save your changes and to subscribe / unsubscribe to
the MWI server.
4. To save the changes so they are available after a power fail, refer to Section 5.10.2 on
page 205.
Table 5-9: Supplementary Services Parameters (continues on pages 84 to 86)
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.
Note: 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.
Note 1: To use this service, the gateways at both ends must support this option.
Note 2: 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.
Note 1: The number manipulation rules apply to the user part of the ‘REFER-TO /
Contact’ URI before it is sent in the INVITE message.
Note 2: 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, refer to Section
5.5.9.4 on page 122.
Note: To use this service, the gateways at both ends must support this option.
Enable Call Waiting
[EnableCallWaiting]
No
[0] = Disable the Call Waiting service.
Yes
[1] = Enable the Call Waiting service (default).
If enabled, when an FXS gateway receives a call on a busy endpoint, it responds
with a 182 response (and not with a 486 busy). The gateway plays a call waiting
indication signal. When hook-flash is detected, the gateway switches to the waiting
call.
The gateway that initiated the waiting call plays a Call Waiting Ringback tone to
the calling party after a 182 response is received.
Note 1: The gateway’s Call Progress Tones file must include a ‘call waiting
Ringback’ tone (caller side) and a ‘call waiting’ tone (called side, FXS only).
Note 2: The ‘Enable Hold’ parameter must be enabled on both the calling and the
called sides.
For information on the Call Waiting feature, refer to Section 8.1.5 on page 217.
For information on the Call Progress Tones file, refer to Section 15.1 on page 325.
Number of Call Waiting
Indications
[NumberOfWaitingIndicati
ons]
Number of waiting indications that are played to the receiving side of the call (FXS
only) for Call Waiting. This parameter is used to control the Registration /
Subscription rate.
The default value is 2.