Panasonic KX-TDA30 Features Manual page 289

PBXs can have extensions that are monitored. Any other PBXs must be assigned Network PBX ID 0.
They will only retransmit received monitor data sent by PBXs 2-8.
3.
QSIG Port Setting [Monitored PBX]
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.
Transmit Extension Status Information Functions
Enabled •
•
•
Disabled •
Set the transmission setting for each port according to the layout of your network, so that extension
status information can travel from monitored PBXs to the monitor PBX.
[Example ISDN Network Port Setting]
Network ID 1
4001 NDSS
Idle
OFF
Busy
ON
ON
IP-GW-QSIG
IP data is routed through the network according to the routing tables of the IP-GW cards. When using
VoIP, it is necessary to identify the monitor PBX, 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. This information can be specified for up to eight cards
per PBX.
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
Receive information from other PBXs; forward it to other QSIG ports of the
PBX
PBX-1
OFF
4001
Busy
PBX-3
OFF
4001
Busy
4001
Busy
PBX-5
PBX-2
ON
OFF
OFF
PBX-4
ON
Network ID 3
1.29 Networking Features
4001
Idle Busy
Feature Guide 289