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Method for Dynamically Determining Which Modem Is Installed

IP.com Disclosure Number: IPCOM000062579D
Original Publication Date: 1986-Dec-01
Included in the Prior Art Database: 2005-Mar-09

Publishing Venue

IBM

Related People

Authors:
Grafe, RJ Pancoast, ST Parker, SL Trimble, WR [+details]

Abstract

A method is described for dynamically determining the type of modem installed on a Personal Computer when two are supported, thereby determining the correct command table for use by autodial, without prompting the user for information. When the Dial function is invoked, it checks to see if a modem is installed. If there is a modem present and there wasn't one present the previous time the Dial function was invoked, then the modem is initialized. This method of initialization is unique in that it can detect modem installation that occurred between executions of the Dial function, consequently allowing the modem to be initialized during the next execution of the Dial function. Once it is known that a modem is installed, the type of modem must next be determined. For this Dial function there are two command tables defined.