Third Party Control Protocol
Third Party Control Protocol (TPCP) is a client-server protocol with three types of primitives: * Request (used by the client), * Notify (used by the server to send state information to the client), * Responses (sent as a response to a request) TPCP is the Protocol used for third party call control 3pcc In the traditional telephony context, third party call control allows one entity (which we call the controller) to set up and manage a communications relationship or telephone call between two or more other parties. Third party call control (refer .... TPCP is the protocol used by the controller while communicating with the control server over the control let{{Clarify, date=December 2010. TPCP is used to initiate, control and observe sessions between remote parties. Network protocols ...
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3pcc
In the traditional telephony context, third party call control allows one entity (which we call the controller) to set up and manage a communications relationship or telephone call between two or more other parties. Third party call control (referred to as 3pcc) is often used for operator services (where an operator creates a call that connects two participants together) and conferencing. Similarly, many SIP services are possible through third party call control. These include the traditional ones on the PSTN, but also new ones such as click-to-dial. Click-to-dial allows a user to click on a web page to speak to a customer service representative. The web server then creates a call between the user and a customer service representative. The call can be between two phones, a phone and an IP host, or two IP hosts. Third party call control is possible using only the mechanisms specified within . Indeed, many different call flows are possible, each of which will work with SIP c ...
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