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Date:      Sat, 7 Feb 2004 01:42:33 +1000
From:      "Brett Henrich" <bhenrich@deschutes.no-ip.com>
To:        <freebsd-isdn@freebsd.org>
Subject:   Bandwidth on (manual) demand with i4b
Message-ID:  <20040206154233.739B3110EDC4@bhenrich.dov.nq.net>

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Hello,

I'm a Linux user looking at migrating my ISDN router over to BSD after
finally having enough with the problems with ISDN4Linux (hard lockups, MPPP
issues, the fact it doesn't work with Linux 2.6 among others) and there is
one question I can't seem to find an answer to:

If I have a 128Kbps Synchronous PPP ISDN connection, is it possible to
manually dial and hangup the "slave" channel to switch between a 64 and a
128Kbps link. The reason being is that during the day (this is a home ISDN
connection) I need the second channel open to receive phone calls. At night,
I can bring up both channels and run the connection at 128Kbps.

I have a cron job at the moment that dials the slave channel at 10pm and
brings it down at 7am. 

Under Linux (ISDN4Linux) this is performed by issuing the command "isdnctrl
dial ippp1" (dial second channel) and "isdnctrl hangup ippp1" respectively. 

This function is critical if I'm going to switch over to BSD for Linux.

I'm in Australia too. ISDN (DoV) is untimed but there is a per-call charge
(18 cents) so I want basically to run 64K all the time, bursting to 128K at
night. 

Thanks for your time, and yes, I'm a newbie. 
Brett.




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