Version 6.4 693 March 2012
SIP User's Manual A. Configuration Parameters Reference
Parameter Description
D-channel to control multiple PRI interfaces.
Notes:
For this parameter to take effect, a device reset is required.
This parameter is applicable only to T1 ISDN protocols.
For more information on NFAS, see 'ISDN Non-Facility
Associated Signaling (NFAS)' on page 248.
Web/EMS: D-channel
Configuration
[DChConfig_x]
Defines primary, backup (optional), and B-channels only, per
trunk (where x denotes the Trunk ID).
[0] PRIMARY= Primary Trunk (default) - contains a D-channel
that is used for signaling.
[1] BACKUP = Backup Trunk - contains a backup D-channel
that is used if the primary D-channel fails.
[2] NFAS = NFAS Trunk - contains only 24 B-channels,
without a signaling D-channel.
Note: This parameter is applicable only to T1 ISDN protocols.
Web: NFAS Interface ID
EMS: ISDN NFAS Interface ID
[ISDNNFASInterfaceID_x]
Defines a different Interface ID for each T1 trunk (where x
denotes the trunk ID).
The valid range is 0 to 100. The default interface ID equals the
trunk's ID.
Notes:
To set the NFAS interface ID, configure ISDNIBehavior_x to
include '512' feature per T1 trunk.
For more information on NFAS, see 'ISDN Non-Facility
Associated Signaling (NFAS)' on page 248.
Web: Enable ignoring ISDN
Disconnect with PI
[KeepISDNCallOnDisconnectWi
thPI]
Allows the device to ignore ISDN Disconnect messages with PI 1
or 8.
[1] = The call (in connected state) is not released if a Q.931
Disconnect with PI (PI = 1 or 8) message is received during
the call.
[0] = The call is disconnected (default).
Web: PI For Setup Message
[PIForSetupMsg]
Determines whether and which Progress Indicator (PI)
information element (IE) is added to the sent ISDN Setup
message. Some ISDN protocols such as NI-2 or Euro ISDN can
optionally contain PI = 1 or PI = 3 in the Setup message.
[0] = PI is not added (default).
[1] = PI 1 is added to a sent ISDN Setup message - call is not
end-to-end ISDN.
[3] = PI 3 is added to a sent ISDN Setup message - calling
equipment is not ISDN.
ISDN Flexible Behavior Parameters
ISDN protocol is implemented in different switches/PBXs by different vendors. Several
implementations may vary slightly from the specification. Therefore, to provide a flexible interface that
supports these ISDN variants, the ISDN behavior parameters can be used.
Web/EMS: Incoming Calls
Behavior
[ISDNInCallsBehavior]
Determines the bit-field used to determine several behavior
options that influence how the ISDN Stack INCOMING calls
behave.
[32] DATA CONN RS = The device sends a Connect (answer)
message on not incoming Tel calls.
[64] VOICE CONN RS = The device sends a Connect
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