PictureTel Concorde 4500, Руководство администратора, Страница: 215 / 250

Call Progress Messages
C-3
Call disconnected:
Data rate high, port
1(and/or 2)
A call has ended unexpectedly
because the combined channel
data rate exceeded the maximum
allowable rate. 1. Connect the Concorde•4500 to
channels so that the data rate
is not greater than 768 kbps for
one channel or 128 kbps (total)
for two channels.
2. Retry the call.
3. Try calling another site to
isolate the problem.
Call disconnected:
Data rate low,
port 1(and/or 2)
A call has ended unexpectedly
because the combined channel
data rate has fallen below the
minimum allowable rate.
For example, a channel is set to
less than 1.2 kbps.
1. Connect the Concorde•4500 to
channels with data rates
greater than or equal to
1.2 kbps.
2. Retry the call.
3. Try calling another site to
isolate the problem.
Call disconnected:
Invalid data
A call has ended unexpectedly
because invalid data was
received. Invalid data can consist
of unexpected forms of data
arriving at the Concorde¥4500 or a
mismatched encryption master
key. (A master key mismatch can
occur only when both systems are
set to
Manual Encryption
.)
If the manual key or the auto
session key encryption is being
used, then do the following:
1. Reenter the master encryption
key, and retry the call.
2. Make sure that both sites use
the same master key.
3. Retry the call using the Auto
key or no encryption.
4. Try calling another site to
isolate the problem.
Table C-1: Concorde•4500 System Messages (Continued)
If you see. . . It means. . . Do this. . .