
Customizing ISDN Lines
308621-14.00 Rev 00
11-9
Modifying the Adaption Rate
To send and receive data transmitting at a rate of 56 Kb/s across a 64 Kb/s line,
you must modify the adaption rate. For more information about this feature, see
“Rate Adaption” on page 5-17.
In accordance with the ITU-T V.110 standard, configuring the global adaption rate
enables the router to send and receive data transmitting at a rate of 56 Kb/s and
adapt it for transmission over a 64 Kb/s line.
Ensure that the rate you select is compatible with the network connections to the
destination device. If you are unsure, ask your provider. The default is 64 Kb/s.
Using the BCC
To modify the adaption rate, navigate to the isdn-switch prompt and enter:
global-rate-adaption
<rate>
rate
can be one of the following:
rate64
- to communicate at a rate of 64 Kb/s across the B channel.
rate56
- to communicate at a rate of 56 Kb/s across the B channel.
For example, to set the adaption rate to 56 Kb/s, enter:
isdn-switch/2#
global-rate-adaption rate56
The
global-rate-adaption
parameter works with the
adaption-rate
parameter in
the outgoing phone list. To learn how to customize phone lists, see Chapter 15,
“Customizing Phone Lists.”
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