Third party call control application program interface
First Claim
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1. An apparatus for third party call completion comprising:
- means for receiving a first uniform resource locator operable over a computer network to initiate a third party call between a first telephonic device and a second telephonic device, the first uniform resource locator comprising identification of the first telephonic device and identification of the second telephonic device;
means for initiating a call to the first telephonic device or the second telephonic device using a session initiation protocol (SIP) INVITE method; and
means for transferring the call, in response to an answer of the call, using a SIP REFER method to establish the third party call from the first telephonic device to the second telephonic device.
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Abstract
A third party call control (3PCC) application program interface (API) permits for users to use a web browser or other Internet capable software to place a call. The third party call control application program interface includes a first uniform resource locator operable over the Internet to effect a call between first and telephonic devices to be completed. The first uniform resource locator includes identification of the first telephonic device and identification of the second telephonic device.
195 Citations
21 Claims
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1. An apparatus for third party call completion comprising:
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means for receiving a first uniform resource locator operable over a computer network to initiate a third party call between a first telephonic device and a second telephonic device, the first uniform resource locator comprising identification of the first telephonic device and identification of the second telephonic device; means for initiating a call to the first telephonic device or the second telephonic device using a session initiation protocol (SIP) INVITE method; and means for transferring the call, in response to an answer of the call, using a SIP REFER method to establish the third party call from the first telephonic device to the second telephonic device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of call completion comprising:
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(a) receiving information, transmitted at least partially over a public data communications network, indicating a unilateral call, the information comprising identification of a first telephonic device and identification of a second telephonic device wherein the received information is included in a uniform resource locator indicating a network address on a public data communications network; (b) initiating a call in response to the received information to the first telephonic device or the second telephonic device using a session initiation protocol (SIP) INVITE method; (c) transferring the call, in response to an answer of the call, using a SIP REFER method to establish the unilateral call from the first telephonic device to the second telephonic device; and (d) monitoring the unilateral call at least partially over the public data communications network. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification