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What Are Data Communication Devices?

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    These device contains a user-programmable multi-channel pager/e-mail receiver that has both numbers and alphanumeric capabilities and a modem. These devices  may be used with the host as a telephone set or a telephone answering machine. When the device is used as a telephone answering machine and a user desires to retrieve stored messages, the local telephone office is prevented from placing a fast busy signal on the telephone line. The user can update the firmware  or it can be updated remotely by downloading a new firmware version
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    Sharath_k 

    answered 12 months ago

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