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Adaptive Dial-up Connectivity: Modem-based, using two phone lines

IP.com Disclosure Number: IPCOM000022247D
Original Publication Date: 2004-Mar-02
Included in the Prior Art Database: 2004-Mar-02
Document File: 2 page(s) / 28K

Publishing Venue

IBM

Abstract

The core idea of this invention is that functionality is added to modems which allows them to periodically renegotiate to try to attain a higher data rate using a background process and a secondary phone line. The modem sends its identification to the Service Provider (SP) whenever a session is established. If the modem connects again on a different phone line, the SP is now capable of transferring the session already established to the second phone line, and the first connection is dropped after the transfer. During the negotiation phase, the SP informs the modem how often to attempt a new connection, and the phone number at which the connection should be attempted.

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Adaptive Dial-up Connectivity: Modem-based, using two phone lines

Dial-up network connections are infamous for their problems: the actual data rate may be considerably less than the maximum possible so that a user may attempt to connect several times to try for a higher data rate; once the data rate is established, it cannot be changed; if a telephone connection deteriorates, there may be several retries, but then the connection is dropped, the session is lost, and the user must reconnect.

Broadband access is becoming more common but connectivity for most users is still provided by a modem and telephone line. This invention provides enhancements to modems which will improve connectivity for this majority of users by enabling a modem to connect to one line, establish a data rate, and concurrently, and in the background, enable the modem to attempt to connect at a higher data rate using a secondary phone line. Whenever the modem detects that a higher connection has been made on the secondary line, the modem is now able to switch sessions, such that the session established on the first phone line is transferred to the second line, and the first line is reset and now becomes the secondary line.

The core idea of this invention is that functionality is added to modems which allows them to periodically renegotiate to try to attain a higher data rate using a background process and a secondary phone line. The modem sends its identification to the Service Provider (SP) whenever a session is established. If the modem connects again on a different phone line, the SP is now capable of transferring the session already established to the second phone line, and the first connection is dropped after the transfer.

During the negotiation phase, the SP informs the...