src/sys/i4b/layer3, branch main

Remove ISDN4BSD (I4B) from HEAD as it is not MPSAFE and

2008-05-26T10:40:09+00:00

parts relied on the now removed NET_NEEDS_GIANT.
Most of I4B has been disconnected from the build
since July 2007 in HEAD/RELENG_7.

This is what was removed:
- configuration in /etc/isdn
- examples
- man pages
- kernel configuration
- sys/i4b (drivers, layers, include files)
- user space tools
- i4b support from ppp
- further documentation

Discussed with: rwatson, re

I4B header files were repo-copied from sys/i386/include/ to

2007-07-06T07:17:22+00:00

sys/i4b/include/ so they will be available to all architectures
once I4B compiles on those.

Adapt #include paths.

Approved by:	re (kensmith)

/* -> /*- for copyright notices, minor format tweaks as necessary

2005-01-06T22:18:23+00:00

Use __FBSDID().

2003-06-11T00:01:05+00:00

Fix off-by-one errors in range checks of state machine states & events.

2003-05-31T18:54:02+00:00

Found by:       FlexeLint

Correct typos, mostly s/ a / an / where appropriate. Some whitespace cleanup,

2003-01-01T18:49:04+00:00

especially in troff files.

Continue de-counting i4b. Devices i4bctl, i4bcapi, iavc, i4bq921,

2002-09-02T00:52:11+00:00

i4bq931, i4b, isic, iwic, ifpi, ifpi2, ifpnp, ihfc, and itjc are
no longer count devices.  Also remove a few other instances of N
being used to control compilation of whole files.

Reviewed by:    hm

add support properly displaying and logging incoming telephone numbers (MSNs)

2002-08-12T07:53:55+00:00

by looking at the "type of number" field and providing configurable hooks
to correct the numbers accordingly. See keywords add-prefix, prefix-national
and prefix-international in isdnd.rc(5).
This feature was implemented by Christian Ullrich

add experimental support for Data over Voice (DoV) outgoing calls.

2002-08-11T15:47:26+00:00

based on patches received from Guy Ellis (guy@traverse.com.au),
Chris Collins (xfire@xware.cx) and Phillip Musumeci (phillip@cs.jcu.edu.au).

Add support for Q.931 subaddresses.

2002-03-26T15:13:54+00:00

Submitted by: Steven Looman