Netopia Router PN Series - Manual (Page 42)

2-26 Reference Guide
accept an incoming call through or when a second connec-
tion profile is used to make a call. See Appendix D for infor-
mation on “Dynamic B-channel usage”.
■ 1 B-Channel forces 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
line. This will also depend on certain geographic locations
in North America. The standard ISDN data rate outside of
North America is 64k.)
■ 2 B-Channels forces a call to use both B-channels.
(Throughput connection will generally run at 128k.)
■ 2 B Pre-emptable allows calls to use 2 B-channels in a
dynamic, Pre-emptable manner. This option is very similar
to Dynamic, in that the second B-channel may be relin-
quished to accept an incoming call or to initiate a second
outgoing call. However, 2B Pre-emptable will always try to
add a second B-channel to the call when the second chan-
nel is otherwise unused, much like a fixed 2 B-channel
selection.
Note: If you select Dynamic or 2 B, Pre-emptable while using
PPP/MP, the Netopia Router may attempt to use both
B-channels during a call. However, during a call, your second
B-channel may be blocked from use if the answering side drops
that B-channel before you begin sending data over it. The
Netopia Router will try four times to bring up the second
B-Channel; if all attempts fail and you wish to retry, end the call
and reinitiate it.
Applicable only to
Switched circuits
■ Select BAP Usage and from the pop-up menu highlight the
method of BAP usage that your ISP or network administrator
has suggested that you use when establishing a connection to
a remote site. The choices offered for BAP usage are On - Old
IDs, On - New IDs, and Off. Press Return.
BAP refers to the PPP Bandwidth Allocation Control Protocol.
The BAP Usage feature allows a Netopia Router to either dial
out to provide a telephone number for a multilink call, or allows
the Netopia Router to answer a call, while also providing a