System for automatically adding additional data stream to existing media connection between two end points upon exchange of notifying and confirmation messages therebetween

An apparatus in a first endpoint for adding an additional data stream to an existing media source between two endpoints comprising:

• a. a first circuit coupled to a communication interface, said first circuit creating and transmitting a first message containing a reference to said existing media source which identifies the availability of said additional data stream to a second endpoint;
• b. a second circuit coupled to said communication interface, said second circuit receiving a second message from said second endpoint notifying said first endpoint of confirmation to receive said additional data stream;
• and
• c. a third circuit coupled to said communication interface, said third circuit providing said additional data stream to said second endpoint such that said second endpoint interprets said additional data stream as being received from said first endpoint.

An automatic method for adding an additional media stream associated with an existing media stream transmitted between two endpoints comprising the following steps:

• a. a first endpoint identifying the availability of said additional media stream to a second endpoint via a first message containing a reference to said existing media stream;
• b. said second endpoint notifying said first endpoint of confirmation to connect via a second message;
• and
• c. said first and said second endpoint establishing communication to provide said additional media stream to said second endpoint, said additional media stream being associated in said second endpoint with said first endpoint.