Solved

detect busy telephone line

Posted on 1997-03-25
4
300 Views
Last Modified: 2008-03-10
I wrote a simple program that calls a telephone number with MSComm control.
How can I learn if the number is busy.
0
Comment
Question by:daloukas
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
4 Comments
 

Accepted Solution

by:
wmingee earned 25 total points
ID: 1424728
you'll recieve input from the modem of "BUSY".
0
 

Author Comment

by:daloukas
ID: 1424729
Thanks, but how can I receive the "BUSY"  from modem. By an AT command ? By a property in MsComm?
0
 

Expert Comment

by:wmingee
ID: 1424730
It will come in thru the OnComm event. After you send the dial string you will get one of sveral possible responses such as connect, no dailtone, busy, etc
0
 
LVL 1

Expert Comment

by:Pavel040997
ID: 1424731
You will get the "BUSY" input from the modem1
You can receive it like this:

if mscomm.input="BUSY" then ....


0

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

There are many ways to remove duplicate entries in an SQL or Access database. Most make you temporarily insert an ID field, make a temp table and copy data back and forth, and/or are slow. Here is an easy way in VB6 using ADO to remove duplicate row…
When trying to find the cause of a problem in VBA or VB6 it's often valuable to know what procedures were executed prior to the error. You can use the Call Stack for that but it is often inadequate because it may show procedures you aren't intereste…
Get people started with the utilization of class modules. Class modules can be a powerful tool in Microsoft Access. They allow you to create self-contained objects that encapsulate functionality. They can easily hide the complexity of a process from…
Show developers how to use a criteria form to limit the data that appears on an Access report. It is a common requirement that users can specify the criteria for a report at runtime. The easiest way to accomplish this is using a criteria form that a…

726 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question