Method and apparatus for connecting packet telephony calls between secure and non-secure networks

A method, comprising:

• receiving a first telephony stream having information content from a first client on a first network;
• terminating the first telephony stream at a boundary between the first network and a second network;
• and
• establishing a second telephony stream having the information content for a second client on the second network.

A method, comprising:

• receiving a first telephony stream, having information content, formatted according to a first protocol used by a first network;
• terminating the first telephony stream at a boundary between the first network and a second network;
• dynamically selecting a second protocol to match a protocol used by the second network;
• and
• establishing for the second network a second telephony stream having the information content, wherein the second stream is formatted according to the second protocol.

A method, comprising:

• receiving a private address from a trusted client on a first network;
• assigning a public address to the private address;
• receiving a non-secure first telephony stream, having information content, for delivery to the public address;
• terminating the non-secure first telephony stream at a boundary between the first network and a second network;
• and
• sending a secure second telephony stream, having the information content, for delivery to the private address.

An apparatus, comprising:

• a controller to transfer information content between a first telephony stream from a first network and a second telephony steam from a second network and to insulate the first network and the first telephony stream from the second network and the second telephony stream;
• a stream transformer included in the controller to send and receive the first telephony stream on one side of a boundary between the first and second networks and to send and receive the second telephony stream on the other side of the boundary;
• a protocol translator included in the controller to translate a first protocol used on one side of the boundary into a second protocol used on the other side of the boundary;
• an address translator (AT) included in the controller to translate a first address used on one side of the boundary into a second address used on the other side of the boundary;
• and
• a first interface coupled to the controller for interfacing with the first network;
• and
• a second interface coupled to the controller for interfacing with the second network.

A packet telephony transformer, comprising:

• a controller to control the transfer of call content between a first network and a second network and to insulate a first telephony stream of the first network from a second telephony stream of the second network;
• a first protocol engine communicatively coupled to the controller to process connection protocols and to transfer call content for the first telephony stream;
• a second protocol engine communicatively coupled to the controller and to the first protocol engine to process connection protocols and to transfer call content for the second telephony stream;
• a packet disassembler/reassembler (PDR) coupled to the controller and to the protocol engines to pass a telephony data packet to either the first protocol engine or the second protocol engine based on a header of the telephony data packet;
• and
• a packet inspector coupled to the controller and to the PDR to inspect a data stream between the first network and the second network and to remove telephony data packets from the data stream for transfer to the PDR.

An article of manufacture, comprising:

• a machine-readable medium containing content, that when executed causes a machine to:
• receive a first telephony stream having information content from a first client on a first network;
• terminate the first telephony stream at a boundary between the first network and a second network;
• and
• send a second telephony stream having the information content to a second client on the second network.

A method for transforming packet telephony streams, comprising:

• inspecting a stream of data packets for the presence of telephony data packets;
• removing the telephony data packets from the stream of data packets;
• reading at least one of a telephony data packet header and/or a telephony data packet payload to direct each telephony data packet into one of a first telephony stream and a second telephony stream;
• and
• transferring information content between the first telephony stream and the second telephony stream while isolating the first telephony stream from the second telephony stream.