2N NetStar Admin manual - Manual (Page 38)

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DSS1 protocol parameters
Reverse NT/TE mode – this option refers to L3 signalling only. Check this
option to make a TE port behave as an NT port (and vice versa).
Do not send time at NT – use this option to disable sending of the connection
date and time information within the CONNECT message from an NT port to a TE
port. Available for NT ports only.
Ignore unset explicit channel – use this option to enable call establishment
without an explicitly set B–channel.
Always select B–channel – use this option to disable sending the channel
identification information within the SETUP message together with channel
signalling. Available for TE ports only.
Disconnect L2 if there is no call – use this option to disconnect the L2 layer
on a inactive interface. The PBX automatically disconnects the layer after a
timeout. An incoming call automatically reconnects the layer.
Keep L2 connected – check this option to make the PBX to keep L2 connected
on this interface without any incoming call. This option may not be combined
with the
option. Disconnect L2 if no call
Disconnected L2 as error – use this option to activate a caution about the
second layer being disconnected. This fact is indicated by a red exclamation mark
on the port in the
menu and a red text in the upper stack Hardware – Boards
status field. This option may not be combined with the Disconnect L2 if no call
option.
Terminals – is active for virtual MPT NT ports. Enter all connected ISDN
terminals including their
. Assign a extension to these terminals MSN numbers
using the tag. The terminal shall then identify itself as the selected Extensions
extension within the PBX.
is able to process (i.e. resend to an interface other than 2N NetStar
®
ISDN) only G.711 A-law encoded calls on the ISDN interface. Calls
encoded by G.711 µ-law can only be resent between the ISDN
interfaces in the PBX.
Digital interface diagnostic
Line state – the parameter cannot be set. It only shows the state of the first
interface layer.
Number of SLIPs per minute – this parameter gives the count of slips. A slip is
caused by different clocks of the PBX and the active terminal. This value is
updated every 6 seconds and represents a weighted average per minute.
Bit error rate per second – the BER parameter gives a count of incorrectly
transferred bits during transmission. The value is updated every 6 seconds and
represents a weighted average per minute.
If the port supervision is used, enable some or all of the following parameters: SNMP
, , , Inactive L1 as error Disconnected L2 as error Nonsynchronous L1 as error
. If not, the port error will not be detected and the PBX will be unable to BER as error
send a warning.