[comp.dcom.telecom] Looking for ISDN CPE: Voice/Data & Speed > 19.2 kbps

jdg0@gte.com (Jose Diaz-Gonzalez) (08/02/90)

Hi there,

I need to interface a Sun 3/160 to our ISDN simulator.  Given the lack
of TA boards for the VME bus, we have decided to get started by using
a simple data connection through one of the serial ports to an ISDN
set.  We would like to use a higher data rate than the 19.2 Kbps that
is common in most ISDN phone sets.  Obviously, we want to make full
use of one of the B channels at 64k, but we do not know how to do this
without a TA card.  Since the serial ports of the Sun have a maximum
rate of 32 Kbps, this would be the maximum rate we could go without
buying additional boards for the Sun.  Someone here has suggested
V.35.  I don't know much about V.35 or whether any vendor sells such a
thing.  Could anyone suggest an alternative to this?.

Also, since the equipment at the other end of the connection is a PC
with a TA card that allows us to run the connection at 64Kbps, I will
have to do rate adaption (v.110 or v.120) in software.  I assume the
ISDN set must perform rate adaption internally.  But, what is the
prefered or most common "standard"?.  Please respond by email.

Thanks,


+	Jose Pedro Diaz-Gonzalez     +		                    	+
+	SrMTS			     +					+
+	GTE Laboratories, Inc.       +	   Tel:   (617) 466-2584	+
+	MS-46                 	     +	   email: jdiaz@gte.com    	+
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