SIP CONVERTER

• US 20110216203A1
• Filed: 05/17/2011
• Published: 09/08/2011
• Est. Priority Date: 06/14/2007
• Status: Abandoned Application

• Current Assignee: Motoki Takahashi, Tomohiro Watanabe, Yutaka Tsumori
• Original Assignee: Motoki Takahashi, Tomohiro Watanabe, Yutaka Tsumori
• Inventors: WATANABE, Tomohiro, TAKAHASHI, Motoki, TSUMORI, Yutaka
• Application Number:
  US13/109,752
• Publication Number:
  US 20110216203A1
• Time in Patent Office: Days
• US Class Current: 348/152
• CPC Class Codes: H04L 65/1045 Proxies, e.g. for session initiation protocol [SIP]

Abstract

When communications are performed by connecting a non-SIP information terminal device in which SIP is not supported to a SIP converter connected to a communication line via a line terminating device, the SIP converter performs establishment and disconnection of a SIP session, and transmission of a SIP message on behalf of the non-SIP information terminal device.

Claims

1. A communication apparatus for enabling communication between a first terminal device that is not compatible with SIP and a second terminal device that is compatible with SIP, wherein

the communication apparatus:

in response to the first terminal device turning on a terminal ready signal, turns on ready-for-sending signal to the first terminal device;

receives a telephone number sent as a CRN command from the first terminal device in response to the turning-on of the ready-for-sending signal;

identifies the second terminal device as a communication partner based on the telephone number received as the CRN command; and

transmits an INVITE command to the identified second terminal device.

3. The communication apparatus of claim 1, wherein the communication apparatus turns on a data-set-ready signal to the first terminal device after establishing an SIP session with the second terminal device.

4. The communication apparatus of claim 3, wherein, in response to the first terminal device turning off the terminal ready signal, the communication apparatus turns off the data-set-ready signal to the first terminal device.

5. The communication apparatus of claim 4, wherein the communication apparatus turns off the data-set-ready signal and concurrently transmits a BYE command to the second terminal device.

2. A communication apparatus for enabling communication between a first terminal device that is not compatible with SIP and a second terminal device that is compatible with SIP, wherein

in response to the first terminal device changing a terminal ready signal from OFF to ON, the communication apparatus transmits an INVITE command to the second terminal device that has been designated in advance as a communication partner.

6. A communication apparatus for enabling communication between a first terminal device that is not compatible with SIP and a second terminal device that is compatible with SIP, wherein the communication apparatus:

on reception of a notification from a third terminal device, transmits an INVITE command to the second terminal device that has been designated in advance as a communication partner to establish an SIP session with the second terminal device; and

transmits data that has been received from the first terminal device to the second terminal device using the SIP session.

7. The communication apparatus of claim 6, wherein the third terminal device is a monitoring device, and the first terminal device is a camera.

8. A security system comprising:

a monitoring device that detects an intruder;

a camera;

a terminal device that is compatible with SIP; and

a communication apparatus that communicates with the camera using a protocol other than SIP and communicates with the terminal device using SIP, wherein

the communication apparatus;

establishes an SIP session with the terminal device on reception of a notification from the monitoring device; and

transmits information of the camera to the terminal device using the SIP session.

9. The security system of claim 8, wherein the terminal device is provided in a security company, and the monitoring device is an infrared sensor.

10. The security system of claim 9, wherein the camera is connected to the communication apparatus using a USB interface.