Path: utzoo!mnetor!uunet!wpg!russ
From: russ@wpg.UUCP (Russell Lawrence)
Newsgroups: comp.dcom.modems
Subject: How do you wake up sleepy Racal Vadic modems?
Message-ID: <392@wpg.UUCP>
Date: 24 Mar 88 02:45:44 GMT
Organization: WP Group, POB 306, Metairie, LA 70004
Lines: 24


I've been trying to get the bugs out of a program that will make PC 
Pursuit truly useful for netlanders seeking to lower their phone bills 
by providing a smart front end for uucico.  In some areas, notably 
Washington, DC, telenet is using high density Racal-Vadic modems hooked 
up to their outgoing ports.  According to telenet, an "ATZ" string is 
supposed to wake up these modems and condition them for dialing.  
Unfortunately, there are a lot of "bad" modems that get hung up and 
never respond.  What's worse is that my program snags a lot of those bad 
modems because of higher than normal dialing frequency.   

Anyway, telenet personnel claim the modems are simply "bad", but since 
I've managed to locate as many as four or five of these "bad" modems in 
a twenty minute period (day in, day out), I'm beginning to suspect that 
the "ATZ" string may not be sufficient.  Could some of you Racal-Vadic 
experts tell me if there is some other string that I could send these 
modems when they fail to respond after a reasonable period of time?  
There must be some way to wake 'em up.  


-- 
Russell Lawrence, WP Group, POB 306, Metairie, LA 70004
AT&T:   +1 504 456 0001          COMPUSERVE: 72337,3261
UUCP:   {philabs,hpda,nbires,amdahl,...}!uunet!wpg!russ