ISDN-QSIG (PBX Direct Connection)
Each QSIG port of a BRI or PRI card that will be used to transmit extension status information must be set
to do so through system programming. Even if a port is set to not transmit information, it will still receive
information from other PBXs.
® 3.13 [1-1] Slot—Port Property - BRI Port—ISDN CO—
Networking Data Transfer
® 3.15 [1-1] Slot—Port Property - PRI Port—CO Setting— Networking Data Transfer
Transmit Extension Status Information Functions
Enabled
• Transmit information on own PBX extensions
• Receive information from other PBXs; forward it to other QSIG ports of
the PBX
• Re-transmit information received by other QSIG ports of the PBX
Disabled
• Receive information from other PBXs; forward it to other QSIG ports of
the PBX
Set the transmission setting for each port according to the layout of your network, so that extension status
information can travel between NDSS monitor PBXs.
[Example ISDN Network Port Setting]
PBX-1
Network
ID 1
PBX-2
Network
ID 0
4001
Idle Busy
OFF
OFF
ON
ON
ONOFF
OFFOFF
ON
4001
Busy
4001
Busy
4001
Busy
PBX-3
PBX-5
PBX-4
Network
ID 3
Idle
4001 NDSS
Busy
IP-GW-QSIG
IP data is routed through the network according to the routing tables of the IP-GW cards. When using a
private IP network, it is necessary to identify the monitor PBXs, to which to transmit extension status
information, for each card that will be used. This is done by specifying the extension number of any
extension (for example, the PBX operator) at the monitor PBX as a Network Operator extension for that
IP-GW card.
Feature Guide 347
1.30.5 QSIG Enhanced Features
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