Flash ROM Upgrades - Fast, flexible, and easy upgrades to modern features eliminate obsolete equipment. Onboard Modem Controller - Allows optimum flexibility in modem installation and flash ROM for fast and easy updates. Advanced Features Business Features - Supports a wide range of telephone systems. Messaging - Includes multiple mailboxes and priority message paging. Archive messages or retrieve them remotely.
Callers can switch to their mailbox of choice using a touch-tone phone.
Pass-Through Security allows the caller immediate access after password verification. Dial-Back Security verifies the caller's password and calls back to a predetermined number. Access control ensures a protected communications environment. Time - Allows the modem to reliably escape from the online mode to the command mode without being accidentally triggered by transmitted data. U.S. Patent 4,549,302 was granted to Hayes in 1985, and subsequent patents have been granted in Canada, Great Britain, France, Japan, Germany, Italy, Hong Kong, and Singapore.