System and method for distributed call monitoring/recording using the session initiation protocol (SIP)
First Claim
1. A system for remote call monitoring of a call set up between a first Session Initiation Protocol (SIP) device and a second SIP device comprising:
- a. a monitor adapted to receive a first media stream from the first SIP device and/or a second media stream from the second SIP device;
b. a controller adapted to derive information from at least both a first SIP INVITE message from the first SIP device and a response message from the second SIP device to generate one or more additional SIP INVITE messages, wherein the response message comprises a SIP OK message sent in response to the first SIP INVITE message; and
c. wherein the monitor is adapted to receive the first media stream and/or the second media stream in response to receipt of the one or more additional SIP INVITE messages.
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Accused Products
Abstract
The system and method described herein allows for full monitoring and recording of SIP calls by using standard SIP messages. During the call set up between a first SIP device and a second SIP device, information is derived from a first SIP INVITE message from a first SIP device. Information is then derived from a response message from the second SIP device.
The monitor/recorder receives one or more SIP INVITE messages to set up a first media stream from the first SIP device and a second media stream from the second SIP device to the monitor/recorder. The monitor/recorder receives the first and/or second media stream. The monitor/recorder then records the first and/or second media stream. In addition, the system and method provide for recording on demand, required recording, and pause-and-resume recording of SIP calls.
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Citations
37 Claims
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1. A system for remote call monitoring of a call set up between a first Session Initiation Protocol (SIP) device and a second SIP device comprising:
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a. a monitor adapted to receive a first media stream from the first SIP device and/or a second media stream from the second SIP device; b. a controller adapted to derive information from at least both a first SIP INVITE message from the first SIP device and a response message from the second SIP device to generate one or more additional SIP INVITE messages, wherein the response message comprises a SIP OK message sent in response to the first SIP INVITE message; and c. wherein the monitor is adapted to receive the first media stream and/or the second media stream in response to receipt of the one or more additional SIP INVITE messages. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method for remote call monitoring comprising:
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a. setting up a call from a first SIP device to a second SIP device; b. deriving information from a first SIP INVITE message from the first SIP device; c. deriving information from a SIP response message from the second SIP device, wherein the SIP response message is sent in response to the first SIP INVITE message; d. generating one or more additional SIP INVITE messages using the information from at least both the first SIP INVITE message and the information from the SIP response message; e. sending the one or more additional SIP INVITE messages to a monitor to set up a first media stream from the first SIP device and/or a second media stream from the second SIP device to the monitor; and f. receiving the first media stream and/or the second media stream at the monitor. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A method for distributed call monitoring comprising:
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a. in response to receiving a first SIP INVITE of a first SIP device for a second SIP device to join a call with the first SIP device, sending the first SIP INVITE to the second SIP device, deriving SDP information from the first SIP INVITE, and sending a second SIP INVITE with the SDP information to a monitor thereby to set up a first media stream between the first SIP device and the monitor; b. in response to receiving a SIP OK of the second SIP device responsive to the first SIP INVITE, deriving SDP information from the SIP OK and sending a third SIP INVITE with the SDP information to the monitor thereby to set up a second media stream between the second SIP device and the monitor; and c. sending copies of call traffic sent by the first SIP device and of call traffic sent by the second SIP device as the first and the second media streams to the monitor.
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Specification