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- Newsgroups: comp.dcom.modems
- Path: sparky!uunet!munnari.oz.au!bruce.cs.monash.edu.au!monu6!yoyo.cc.monash.edu.au!parry
- From: parry@yoyo.cc.monash.edu.au (Tom J Parry)
- Subject: A Challenge
- Message-ID: <1992Aug26.061949.29945@monu6.cc.monash.edu.au>
- Originator: parry@yoyo.cc.monash.edu.au
- Sender: news@monu6.cc.monash.edu.au (Usenet system)
- Organization: Monash University, Melb., Australia.
- Date: Wed, 26 Aug 1992 06:19:49 GMT
- Lines: 42
-
- I have a challenge for everyone in modem land. I have tried to work out how
- to do this and am ready to accept it as impossible. Here is the situation:
-
- I have a v32 modem connected to a terminal server that defaults to 9600
- baud when it resets (this can't be changed). You can however, at the server
- prompt, tell it to go to 19200 baud.
-
- I am dialing into the modem with my PC and establishing a 9600 carrier
- v32/v42bis connection (I think). What I want to then do is tell the
- terminal server to jump to 19200 baud. If I had my PC connected to the
- server I would do the following:
-
- Once connected, send a break, this drops you out of the machine you are
- logged into, back to the terminal server. Issue the command to go to 19200
- baud. Adjust my comms program to 19200 and jump back to my session.
-
- Now the hard bit. I want to do this via modem. It requires the following to
- happen. Send break to jump back to server. Issue command to change server o
- to 19200. The modem will no longer talk to the server now!!! Somehow do a
- +++ , issue an AT command at 19200 baud to make the modem change baud rates
- (this works) and go back online and reconnect to my session. The problem is
- where we become disconnected because of the baud rate change.
-
- I have started experimenting with such things like this:
-
- sleep 3
- echo -n +++
- sleep 3
- AT
- sleep 3
- ATO
-
- This works. I run this and the remote modem actually does what you would
- expect. What I need to do is somewhere change the terminal server to 19200
- before the AT command (I believe). I am able to change the server's prompt
- to AT if this could help.
-
- After much experimenting, I have given up. Any ideas?
-
- --
- Tom J Parry.
- Your reality is a figment of my imagination.
-