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USB Modem Terms

Before configuring USB modems and their supporting dialer interfaces, become familiar with the terms defined in Table 52.

Table 52: USB Modem Terminology

Term

Definition

caller ID

Telephone number of the caller on the remote end of a USB modem connection, used to dial in and also to identify the caller. Multiple caller IDs can be configured on a dialer interface. During dial-in, the device matches the incoming call's caller ID against the caller IDs configured on its dialer interfaces. Each dialer interface accepts calls from only callers whose caller IDs are configured on it.

dialer interface (dl)

Logical interface for configuring dialing properties for a USB modem connection.

dial-in

Feature that enables the device to receive calls from the remote end of a USB modem connection. The remote end of the USB modem call might be a service provider, a corporate central location, or a customer premises equipment (CPE) branch office. All incoming calls can be verified against caller IDs configured on the device's dialer interface.

Microcom Networking Protocol (MNP)

Protocol that provides error correction and data compression for asynchronous modem transmission.


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