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    A L P H A   R E L E A S E   of   an  I S D N - driver under  L I N U X 

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required hardware:

	o   ISDN-card SCOM from Diehl (Germany)
		address:	Diehl Elektronik GmbH
				Bahnhofstr. 63
				D-71229 Leonberg (Germany)
		phone:		+49 7152 9329-0
		fax:		+49 7152 9329-99
		e-mail:         cb@diehl.de
		price: around 2500 DM

		This ISDN-card is an so called active card, where the 
		countryspecific ISDN-code can be downloaded. 
		Diehl provides code for the following countries:

			o	Germany (1TR6)
			o	France (VN2)
			o	Sweden
			o	Japan (NTT)
			o	USA (ATT 5ESS)
			o	Belgium
			o	Switzerland (SWISSNET 2)
			o	Great Britain
			o	Australia/New Zealand
			o	Singapur
			o	EuroISDN
			
required software:

	o	LINUX kernel 0.99pl15. the Driver works with 0.99pl13 but the
		patches are for pl15

features:

	o	one character device for each ISDN-B-channel
	o	transparent speech mode available
	o	all D-channel activities are handled by this device

structure of that software:

	1)	kernel part: 	isdn.c 	--->  	device controling
				diehl.c --->  	lowlevel devicedriver

		(isdn.kernel-0.1.tar)

	2)	user part:	
			load.c		--->	load the OS to ISDN-card
			play.c		--->	call number and play file
			rec_from.c	--->	call number and record
			connect.c	--->	call number and sleep
			listen.c	--->	wait for incoming calls
			debug.c		--->	change the debug level
			ind.c		--->	show ISDN-indications
			alaw2ulaw.c	--->	convert alaw to ulaw encoding
			ulaw2alaw.c	--->	convert ulaw to alaw encoding
			
If you realize any bugs please email.
We are very interested in running TCP/IP over that driver too, if you
have solutions and ideas please give us a hint!

Henrik (marsu@palumbia.IN-Berlin.de) 
