AT commands program a variety of modem hardware settings and were adopted by other modem manufacturers who wanted to market their wares with the term Hayes-compatible. It was considered a must to know that ATL0 turned your modem speaker down and ATM0 turned it off. Now, however, the commands are usually hidden under a menu option in your communication software. Some Web sites require a user s identity to be authenticated before they can enter. Auto Answer - The modem feature which enables detection of a ring and answering without assistance from a program.
Video quality can be very good at smaller resolutions, but files tend to be rather large.
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