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laforge, 02/19/2016 10:48 PM


mISDN is the latest incarnation of a Linux in-kernel ISDN stack.

You can find more information about mISDN at http://www.misdn.org/

The BS11-Abis project uses mISDN as a foundation * to drive the HFC-E1 card, using the hfcmulti.ko driver * to handle the TEI assignment procedures on the Abis interface * to offer a sockets based kernel/userspace interface for the actual BSC code

Unfortunately, there are a number of subtle differences between Q.921 and the way how Abis utilizes
the E1 physical link, and as a result mISDN cannot be used unmodified to drive Abis.

We are working on some patches (currently rather: hacks) to make it work. After more experience
with it, proper patches will be made and merged into mISDN mainline.

Configuration

please make sure to load the hfcmulti Linux kernel module using the option "dslot=1" parameter. If
you fail to do so, the timeslot for signalling will be 15 (whereas the BTS uses 1).

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Updated by laforge about 8 years ago · 1 revisions

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