Methods and apparatus for economical utilization of communication networks
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United States of America Patent
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Sep 9, 2003
Grant Date -
N/A
app pub date -
Jul 2, 1999
filing date -
Jul 22, 1998
priority date (Note) -
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Abstract
A communication system is provided that includes a plurality of remote terminal units (RTUs) that communicate with a server via a network. The network provides communication paths to the RTUs via both a sessionless protocol and a switched connection protocol. Generally, the RTUs communicate via the network using the sessionless protocol. The network also includes a server. The RTUs share at least one account identifier that is coordinated by the server. Short messages are sent via the sessionless protocol. Longer messages are sent via the switched connection protocol using a shared account identifier. A corresponding method of operating the network is also provided. The use of a shared account identifier avoids the requirement of obtaining access accounts to the switched connection protocol for each of the RTUs, and is especially efficient and economical when the need to communicate longer messages is infrequent, but where each of a large number of RTUs require this capability.
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