AudioCodes Mediant 500L MSBR - Page 960

User's Manual 960 Document #: LTRT-10466
Mediant 500L MSBR
Parameter Description
received during the first 5 seconds, the device sends a SIP
NOTIFY with 200 OK message; otherwise, the device sends a
NOTIFY with 4xx message.
 [6] = Supports AT&T toll free out-of-
band blind transfer for trunks
configured with the 4ESS ISDN protocol. AT&T courtesy transfer
is a supplementary service which enables a user (e.g., user "A")
to transform an established call between it and user "B" into a
new call between users "B" and "C", whereby user "A" does not
have a call established with user "C" prior to call transfer. The
device handles this feature as follows:

IP-to-Tel (user side): When a SIP REFER message is
received, the device initiates a transfer by sending a Facility
message to the PBX.

Tel-to-IP (network side): When a Facility message initiating
an out-of-band blind transfer is received from the PBX, the
device sends a SIP REFER message to the IP side (if the
EnableNetworkISDNTransfer parameter is set to 1).
Note: For configuring trunk transfer mode per trunk, use the
parameter TrunkTransferMode_x.
[TrunkTransferMode_x] Determines the trunk transfer mode per trunk (where x denotes the
Trunk number). For configuring trunk transfer mode for all trunks
and for a description of the parameter options, refer to the
parameter TrunkTransferMode.
[EnableTransferAcrossTrunk
Groups]
Determines whether the device allows ISDN ECT, RLT or TBCT IP-
to-Tel call transfers between B-channels of different Trunk Groups.
 [0] = (Default) Disable - ISDN call transfer is only between B-
channels of the same Trunk Group.
 [1] = Enable - the device performs ISDN transfer between any
two PSTN calls (between any Trunk Group) handled by the
device.
Note: The ISDN transfer also requires that you configure the
parameter TrunkTransferMode_x to 2.
Web: ISDN Transfer
Capabilities
EMS: Transfer Capability To
ISDN
CLI: isdn-xfer-cab
[ISDNTransferCapability_x]
Defines the IP-to-ISDN Transfer Capability of the Bearer Capability
IE in ISDN Setup messages, per trunk.
 [-1] Not Configured
 [0] Audio 3.1 (default)
 [1] Speech
 [2] Data
 [3] Audio 7
Notes:
 If this parameter is not configured or is set to -1, Audio 3.1
capability is used.
 The x in the ini file parameter name denotes the trunk number,
where 0 is Trunk 1.
[TransferCapabilityForDataC
alls]
Defines the ISDN Transfer Capability for data calls.
 [0] = (Default) ISDN Transfer Capability for data calls is 64k
unrestricted (data).
 [1] = ISDN Transfer Capability for data calls is determined
according to the ISDNTransferCapability parameter.
Web: ISDN Transfer On
Connect
This parameter is used for the ECT/TBCT/RLT/Path Replacement
ISDN transfer methods. Usually, the device requests the PBX to