Date   : Tue, 12 Aug 1986 00:25:00 MDT
From   : Keith Petersen <W8SDZ@SIMTEL20.ARPA>
Subject: Telenet PC Pursuit file upload problem solved

A fix for the PC Pursuit XMODEM file upload problem has been found.

--cut here--PCP-FIX.MSG--cut here--
TO:       All PC Pursuit Users

SUBJECT:  PC Pursuit file upload problem solved!

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My previous warning message (PCP-WARN.MSG) reported the inability 
of GTE Telenet's PC Pursuit service to upload certain files using 
Christensen ("XMODEM") protocol.  In particular, files containing 
the three-byte ASCII sequence <CR, '@', CR> (binary <0DH, 40H, 
0DH>) cannot normally be uploaded, since this sequence (and any 
variation with high bits set in any of the three bytes) causes an 
escape to Telenet command level.

In response to my initial inquiry about this problem, Telenet 
customer service and engineering representatives informed me that 
no solution was likely.  I am now pleased to report that this 
information was incorrect!  It is possible to upload files 
containing the three-byte Telenet escape sequence by following 
the procedure described below.

After connecting to the remote modem (C DIALxxx/xx command), 
escape to Telenet command level by typing (cr) @ (cr).  Then 
issue the following two commands at the Telenet @ prompts (where 
(cr) indicates RETURN or ENTER as appropriate to your keyboard):

        @SET? 1:0 (cr)
        PAR1:0

        @CONT (cr)

The SET? (Set Parameter) command disables subsequent recognition 
of the normal Telenet escape sequence.  (The PAR1:0 message is a 
response from Telenet.)  The CONT (Continue) command then returns 
control to the remote modem.  Note that the above commands may be 
entered at any time after connecting to the remote dialing area 
via the Telenet C (Connect) command (i.e., before or after 
issuing a Hayes modem ATDT dialing command to connect to a remote 
system).  However, these commands should be used with caution...
Once they have been entered, there is no way to escape back to 
Telenet command level in order to issue a D (Disconnect) command! 
I.e., connection to another dialing area can only be made by 
hanging up (dropping carrier) and then re-dialing into your local 
Telenet access node.

My thanks to Telenet Director of Marketing, Kevin Abt (the 
"Father of PC Pursuit") for researching this problem and 
providing the above information.  Kevin also reports that GTE is 
actively responding to the enormous popularity of PC Pursuit by 
expanding capacity and enhancing the system.  They have just 
completed a several-week effort to increase the number of 
outgoing modems in each of the 14 metropolitan areas currently 
served by PC Pursuit.  (I have personally noticed a marked 
improvement in the time required to obtain network connections.)  
They are now in the process of testing 2400 bps service and new 
modems which provide enhanced call progress reporting, for 
deployment in all PC Pursuit cities.  They are also soliciting 
requests for additional cities for future service.  To keep 
abreast of the latest developments and/or to provide feedback to 
Kevin, call the NET-EXCHANGE, a FIDO BBS in the Washington, DC 
(DIAL202) area at (703)-689-3561.


                                Bob Freed
                                Newton Centre, MA
                                August 11, 1986

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