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From: jim@rwsys.lonestar.org (James Wyatt KA5VJL                .)
Newsgroups: comp.dcom.modems
Subject: Re: connect problems with T2500
Summary: there's an undocumented register to fix this
Keywords: Telebit T2500 T1000 TrailBlazer Plus PEP connect problems S99
Message-ID: <8791@rwsys.lonestar.org>
Date: 20 Dec 90 17:18:47 GMT
References: <1990Dec19.044634.26743@sopwith> <114896@uunet.UU.NET>
Reply-To: jim@rwsys.lonestar.org (James Wyatt KA5VJL)
Organization: R/W Systems, Richland Hills, Texas, 76118-5849 (817) 595-0571
Lines: 11

In article <114896@uunet.UU.NET> ebersman@uunet.UU.NET (Paul Ebersman) writes:
>Starting with ROM Revision 6.0 for T2500's, a v.25 guard tone was put
>before PEP in the carrier tone sequence and other changes were made.
>This can cause earlier ROM Revisions of T2500's and TB+'s to be unable

This is correct. As usual, Telebit has prepared for this. Setting s99 to 1
will alter the v.25 guard tone behaviour, permitting connection w/ T1000s.
The T2500 really is a fantastic box - I wish my Supra 2400 worked as well.
----
James Wyatt (KA5VJL) - Standard disclaimer applies...          (H)817-595-0571
{letni.lonestar.org,merch.tandy.com}!rwsys.lonestar.org!jim    (W)817-390-2864