Article ID: 158370 - View products that this article applies to.
This article was previously published under Q158370
When you add a second modem to a computer and attempt to use it, you may receive the following error message:
Another program is using the selected telephony device. Try again after other program completes.
This error message occurs if a telephony program was started before the modem was added.
You must shut down and restart the computer before you can use the second modem.
When a modem is used, the following components are loaded into memory:
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