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- #Modem vs router wikipedia how to
- #Modem vs router wikipedia serial
- #Modem vs router wikipedia professional
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#Modem vs router wikipedia serial
Hayes developed and published a command set to control the modem over a serial line. It was possible to send commands to the modem to configure it, to execute certain operations (such as dialling a number, quieting the speaker, hanging up, etc.), and to read the current status of the connection. This was a unique product at the time, because this modem was no longer simply a "dumb" device blindly converting serial data to and from audio tones, but contained some "intelligence". In 1981, Hayes developed the Hayes Smartmodem. The name Hayes still exists as a brand name, owned by Zoom Telephonics, Inc. was a modem manufacturer from the beginning of the 1980s until the end of the 1990s, with its heyday in the early '90s.
#Modem vs router wikipedia how to
If you know how to handle the FAX extensions, write your own book. in the case of FAX the detailed encoding, compression and timing of fax data on the phone line). the very rough and basic FAX extensions, require some deep insight into the involved protocols (e.g. Once someone has mastered the basic set, and implemented the code, it is rather straightforward to deal with vendor-specific extensions. This module is not intended as a reference manual. The reason why this module sticks with the original Hayes command set is to have a defined boundary. If you have no firsthand experience that something is done the same way on "almost" all Hayes-compatible modems, then leave it out, or mark it at least as doubtful.
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If you really want to see your particular love-child covered, provide an Appendix with that vendor-/brand-specific information. This module deals with generic Hayes modems, not with any vendor-specific extensions.The Programming Serial Data Communications book provides other modules for such information. This module is operating-system–agnostic.This module is not a dumping ground for random modem programming information and folklore.This section particularly addresses potential authors. The module then continues with a description of the basics of modem programming, including the set-up of a development environment.įurther, the module provides detailed (but incomplete) programming information, and an incomplete reference of the original Hayes command set and registers.Īdministrative Information It also includes some principal information about what a modem is, and how the signaling with a modem happens. The module explains the origin of the term Hayes, and the related AT commands. Vendor specific extensions are not covered, and do not belong into this module. The original Hayes modem command set is exclusively used as a reference in this module. Often this is done via a wireless phone system, where the wireless module still provides a Hayes-compatible interface for dialing and data transmission. For example, embedded modems in machines are used to automatically "call home" to the manufacturer in case the machine is in need of some service. In recent times, modems can be found in new areas where they were previously not seen. Nevertheless, modems are used for many applications. Modem programming is slowly becoming a lost art, particularly with the widespread migration of users from dial-up lines to DSL for very obvious performance reasons.
#Modem vs router wikipedia professional
Such types of modems are the norm in consumer applications, as well as many professional applications - basically, wherever modems are still used. It covers the programming of Hayes and Hayes-compatible telephone modems. This content is part of the Serial Programming book. 7.3 Special Commands and Character Sequences.2.6 Welcome to the World of State-Machines.
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