3Com 3C10111C - NBX 100 - Modular Exp Base Installation Manual page 98

98 C 2: I
HAPTER NSTALLING
S H C
YSTEM ARDWARE OMPONENTS
Table 15 Modify Line Card Port Fields (continued)
Field Purpose
Set All For Turns on data compression and other measures designed to reduce
Low the packet stream to a minimum
Bandwidth
Enable the Low Bandwidth check box for a telephone you link to the
Connection
network by a low bandwidth connection such as an ISDN line.
Compression
If you are connecting a telephone to the NBX system through a
broadband connection, do not enable the Low Bandwidth settings.
Through a low bandwidth connection you cannot play music on hold.
Default - Off (unchecked)
Audio Selects an Audio Compression setting:
Compression
Default — The system-wide setting
■
None - G.711 — No compression, G.711 (MULAW) audio
■
encoding
Med - ADPCM — Medium compression, ADPCM audio encoding
■
High - G.729 — High compression, G.729 audio encoding.
■
Conference Prevents this telephone from initiating conference calls, however, the
Disabled telephone can still participate in conferences initiated by someone
else.
Periodic Disables the status messages between device and NCP.
Status
Message
Disabled
Example:
During the Auto Discover process, the NBX system may assign extensions
to Line Card ports as shown in
Table 16 Examples of Line Card Addresses
Analog Line Card (3C10114)
MAC Address
00:e0:bb:03:8d:c8
00:e0:bb:03:8d:c9
00:e0:bb:03:8d:ca
00:e0:bb:03:8d:cb
Usually, you want to have the lowest extension number associated with
the first port, the next highest extension number associated with the
second port, and so on.
Table 16.
Analog Line Card (3C10114C)
Extension MAC Address
7260 00:e0:bb:03:8d:cc(1)
7261 00:e0:bb:03:8d:cc(2)
7259 00:e0:bb:03:8d:cc(3)
7258 00:e0:bb:03:8d:cc(4)
Extension
7260
7261
7259
7258