Hyperterminal can connect to modem and dial but cannot connect to COM port and do AT commands

[Frank B Denman]

Hi Folks,

I'm scratching my head over this hyperterminal issue and would really appreciate
a clue or two

This problem is specific to my WinXPP box. On my Win2k box, I have no problem
using Hyperterminal to connect directly to a COM port and issue AT commands to a
modem.

Symptoms on the WinXPP box:

***Phone & Modem Options applet in Control Panel shows the modem on COM3.
***From Diagnostics tab of Phone & Modem Options, I can successfully query the
modem.
***Winfax is configured for the modem on COM3 and has no trouble
sending/receiving faxes.
***Using Hyperterminal configured to connect to the modem (not direct to COM3),
I can manually dial phone numbers.
***BUT, using Hyperterminal configured to connect direct to COM3, I can't get
any response from the modem. Even though Hyperterminal properties under ASCII
setup are configured for local echo, keystrokes are not echoed.

I have swapped in a different modem with the same results.

Any thoughts?

TIA

Frank


Frank Denman
Denman Systems
(e-mail address removed)
[Please delete the "x" from my email address]

 

[Frank B Denman]

Resolved by disabling Scroll Lock. Who would of thunk it.....

The embarassing part is that I did not systematically solve this. Instead, I
stumbled over an old note to myself inside the cover of a USR Courier manual.
Lets hope this archive will be an easier place to find it the next time I
forget.

Frank




Frank Denman
Denman Systems
(e-mail address removed)
[Please delete the "x" from my email address]