Scalable architecture for transmission of messages over a network

1. A system for message delivery comprising:

a server coupled to communicate with a plurality of first outbound resources and a database server, over an internal packet-switched data network, the database server containing account information on customers, the server implements a router-filter and a message queue,

the message queue to store a message received from a customer over an external packet-switched data network,

the router-filter to obtain a message from the queue, validate said message by accessing the account information in the database server, and determine to which of the plurality of first outbound resources to assign said message,

each of the first resources to dial a destination fax number and send a fax.

2. The system of claim 1 wherein the internal data network is a private data network.

3. The system of claim 2 wherein the external data network is the Internet.

4. The system of claim 3 wherein the message is received from the customer via one of a mail transport protocol server and a hypertext transport protocol server on the Internet.

5. The system of claim 1 wherein the router-filter is to prioritize a plurality of messages that have been obtained from the queue and that are assigned to an outbound resource.

6. The system of claim 1 wherein the router-filter is to determine which of the plurality of first outbound resources to assign said message to, based on which resource offers the least cost of delivering said message.

7. The system of claim 1 wherein the router-filter is to generate an error message that indicates an error in delivering said message as reported by the outbound resource to which said message was assigned.

8. The system of claim 1 further comprising:

a plurality of second outbound resources each to convert an input message into a format capable of being played back to a telephone over a telephone network, wherein the router-filter is to determine to which of the first and second resources said message is to be assigned, based on a message type matching a capability of one of a first resource and a second resource.

9. The system of claim 1 further comprising:

a plurality of second outbound resources each to convert an input message into a format capable of being transmitted to a paging terminal over one of (1) a telephone network and (2) a paging gateway over an external packet-switched network, wherein the route-filter is to determine to which of the first and second resources said message is to be assigned, based on a message type matching a capability of one of a first resource and second resource.

10. An article of manufacture for supporting a message delivery system, comprising:

a machine accessible medium containing data that, when accessed by a machine, cause a server to communicate with a plurality of separate outbound resource servers and a database all in a private packet-switched data network, the server to store requests received from customers over an external packet switched data network, verify that the requests are from the customers using information in the database, store the requests in a message queue, and assign said requests from the message queue to one or more of the resource servers which convert data associated with said requests into a format capable of being received by a fax machine over a telephone network.

11. The article of manufacture of claim 10 wherein the medium includes further data which allows the requests to be received from customers over the Internet.

12. The article of manufacture of claim 10 wherein the medium includes further data which, when executed by the machine, cause the server to determine which of the plurality of outbound resource servers to assign a request to, based on which resource offers the least cost of delivering said request message.