Signaling method for internet telephony
AssigneeLucent Technologies Inc.
InventorsJonathan David Rosenberg, Henning G. Schulzrinne
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Abstract
A method for creating, modifying, and terminating connections between Internet end systems, particularly, although not exclusively, for Internet telephony communication. The method relies on several request messages sent between a client and a server and the response messages sent back in response. Each request and response message may contain one or more header fields which modify or more uniquely link the messages with a given connection. On this basis, advanced telephony services, such as call forwarding, call transferring, and multiparty conferencing are provided.
Claims17
In a computer network, a method by which a first party on the network can transfer a communication connection with a second party on the network to a third party on the network, the method comprising the steps of:
- having the first party instruct the second party to establish a communication connection with the third party;
- and
- informing the first party as to the status of the establishment of a communication connection between the second party and the third party;
- and
- terminating the communication connection between the first party and the second party concurrent with, or in response to, a communication connection between the second party and the third party being successfully established,
- wherein the first party sends the second party a request message including a header field containing the third party and acting to instruct the second party to establish a communication connection with the third party.
In a computer network, a method by which a first party on the network can transfer a communication connection with a second party on the network to a third party on the network, the method comprising the steps of:
- having the first party instruct the second party to establish a communication connection with the third party;
- and
- upon successfully establishing a communication connection between the second party and the third party, terminating the communication connection between the first party and the second party;
- wherein said step of terminating the communication connection between the first and second party includes,
- informing the first party that a status of the establishment of the communication connection between the second and third parties is successful, and
- after the communication connection between the second and third party is successfully established;
- having the first party terminate the communication connection between the first and second parties.
A method performed by a first party to transfer the first party's communication connection with a second party to a third party, the communication connection being established in a computer network, the method comprising the steps of:
- instructing one of the second and third parties to establish a communication connection with the other;
- and
- receiving a status notification informing as to the status of the establishment of a communication connection between the second party and the third party;
- terminating the first party's communication connection with the second party concurrent with, or in response to, the communication connection between the second and third parties being successfully established.
Dependencies are inferred from the claim text.