Toshiba Strata CTX28 - Chapter 10 - Operation; Network Busy Lamp Field (Blf) (R1.3 and Higher)

Services
Network Busy Lamp Field (BLF) (R1.3 and higher)
9-44 Strata CTX Programming - Part 2: CTX WinAdmin Programming 6/04
Network Busy Lamp Field (BLF) (R1.3 and higher)
System Availability: Not available with CTX28
Network BLF is an indication on the CTX Attendant Console and Digital Telephones that an extension is
Busy, Idle or in DND over different nodes. With software release 1.3 and higher, the Primary CTX can
read the BLF information from the remote CTXs.
In order to use Network BLF, the CTX Attendant Console and Digital Telephones must have access to each
CTX by LAN/WAN and requires the IP addresses of each node/CTX. Figure 2 is a BLF/DSS networking
flow diagram. It shows you the types of connections required between the BLF servers, the Strata CTXs
and the CTX Attendant Console.
Figure 2 BLF/DSS Networking
Note The Node ID must be independent of the Station DNs for Network BLF to work.
LAN
Att.
Console 2
Att.
Console 3
Att.
Console 4
Att.
Console 1
LAN
CTX-1
(Primary)
CTX-2
(Remote)
6876
CTX-3
(Remote)
Telephone BLF or DSS information from the Remote CTXs is shared with
Primary CTX over the WAN/LAN. The CTXs share trunk information over QSIG.
WAN
QSIG
(RPTU)
WAN
QSIG
(RPTU)