AudioCodes Mediant 800B - Page 1227

Version 7.2 1227 Mediant 800B Gateway & E-SBC
User's Manual 72. Configuration Parameters Reference
Parameter Description
Enable ignoring ISDN Disconnect
with PI
ign-isdn-disc-w-pi
[KeepISDNCallOnDisconnectWithPI]
Enables 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]
= (Default) The call is disconnected.
PI For Setup Message
pi-4-setup-msg
[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.
B-channel Negotiation
configure voip > interface e1-t1|bri >
b-ch-negotiation
[BchannelNegotiation]
Defines the ISDN B-channel negotiation mode.
 [0] Preferred
 [1] Exclusive (default)
 [2] Any
Note:
 For some ISDN variants, when 'Any' (2) is selected, the
Setup message excludes the Channel Identification IE.
 The Any' (2) option is applicable only if the following
conditions are met:

The parameter TerminationSide is set to 0 ('User side').

The PSTN protocol type (ProtocolType) is configured
as Euro 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.
Incoming Calls Behavior
configure voip > interface e1-t1|bri >
isdn-bits-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 automatically sends a
Q.931 Connect (answer) message on incoming Tel calls
(Q.931 Setup).
 [64] VOICE CONN RS = The device sends a Connect
(answer) message on incoming Tel calls.
 [2048] CHAN ID IN FIRST RS = The device sends Channel
ID in the first response to an incoming Q.931 Call Setup
message. Otherwise, the Channel ID is sent only if the
device requires changing the proposed Channel ID.
 [4096] USER SETUP ACK = (Default) The Setup Ack
message is sent by the SIP Gateway application layer and
not automatically by the PSTN stack.
 [8192] CHAN ID IN CALL PROC = The device sends
Channel ID in a Q.931 Call Proceeding message.
 [65536] PROGR IND IN SETUP ACK = (Default) The
device includes Progress Indicator (PI=8) in Setup Ack