Configuring ISDN Connections
2-17
PPP/MP Options
Send Authentication... PAP
Send User Name:
Send Password:
Receive User Name:
Receive Password: +-------------------+
+-------------------+
B-Channel Usage... | Dynamic |
| 1 B-Channel |
Data Compression... | 2 B-Channels |
| 2 B, Pre-emptable |
+-------------------+
1 or 2 B-Channels will be used, depending on traffic volume.
Other PPP/MP options
4.
Select
B-Channel Usage
and choose how this connection
profile will use the ISDN line’s B channels. Choose:
■
Dynamic
( default setting), to allow calls to use the two B
channels in a dynamic manner. This option allows the
connection profile to use one or both channels at any time
during a call. The decision to alternately use or drop the second
B channel is based on an algorithm that looks at traffic volume
over time. With
Dynamic
, one B channel may be relinquished to
accept an incoming call through or when a second connection
profile is used to make a call. See Appendix D for information
on
“Dynamic B-channel usage” on page D-4
for more
information.
Note:
To relinquish the B channel for an incoming call requires
telco provisioning of ACO (Additional Call Offering).
■
1 B-Channel
to force a call to remain within one B channel.
(Throughput will generally be at either 56k or 64k, depend-
ing on how the local telephone company installs your ISDN
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