Description Page 45 of 910
IP Line Description, Installation and Maintenance
Voice Gateway Media Cards have an ELAN network interface (10BaseT)
and a TLAN network interface (10/100BaseT) on the I/O panel.
Note: The ELAN (Embedded LAN) subnet isolates critical telephony
signaling between the Call Server and the other components. The ELAN
subnet is also known as the Management LAN subnet.
The TLAN (Telephony LAN) subnet carries telephony/voice/signaling
traffic. The TLAN subnet, also known as the Voice LAN subnet,
connects to the customer network and the PSTN.
There is an RS-232 Maintenance Port connection on the faceplates of both the
ITG-P 24-port card and the Media Card card. The ITG-P 24-port card has an
alternative connection to the same serial port on the I/O backplane.
Image file name prefixes
shown by swVersionShow
command
IPL P IPL SA IPL SA
/C: drive On board Flash 2
x 4Mb
Plug-in
CompactFlash
32 Mb
Plug-in
CompactFlash
32 Mb
Upgrade Two images files One image file
(no backup)
One image file
(no backup)
Note: If a Voice Gateway Media Card is used in a CS 1000 system, then the IP Phones
register to the Signaling Server instead of the Voice Gateway Media Card, and are not subject
to these restrictions. A Signaling Server can register a maximum of 5000 IP Phones.
CAUTION
Do not connect maintenance terminals to both the
faceplate and the I/O panel serial maintenance port
connections at the same time.
Table 7
Comparison of ITG-P 24-port and Media Card 32-port and 8-port cards (Part 2 of 2)
Item
ITG-P 24-port
card
Media Card 32-port
card
Media Card 8-port
card