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Method and system for negotiation of media between communication devices for multiplexing multiple media types

a technology of communication devices and media types, applied in the field of media negotiation between communication devices for multiplexing multiple media types, can solve the problem of insufficient efficiency of 5 approaches and inability to fully specify the 5 approaches

Inactive Publication Date: 2014-10-02
RINGCENTRAL INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention provides a method to efficiently specify a 5-tuple for multiplexing without the need to determine the destination communication device's support for the bundling mechanism. This method is downward compatible with existing devices and improves efficiency.

Problems solved by technology

The disadvantage of both of these approaches is that they cannot fully specify the 5-tuple to be used for multiplexing until they have determined that the peer supports the bundling mechanism so these approaches are not sufficiently efficient.

Method used

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  • Method and system for negotiation of media between communication devices for multiplexing multiple media types
  • Method and system for negotiation of media between communication devices for multiplexing multiple media types
  • Method and system for negotiation of media between communication devices for multiplexing multiple media types

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Embodiment Construction

[0042]In FIG. 1, the source communication device represented by a calling User Agent 1, initiates the communication towards the destination communication device represented by the called user agent 4. The source communication device does not know whether the called user agent 4 supports multiplexing of media streams and provides its media capabilities and transport address to the calling user agent 1.

[0043]A signalling server 2 passes the communication establishment requests of the calling user agent 1 towards the intended recipient, the called user agent 4, via the gateway 3. The media gateway 3 may be optionally deployed on the path between the source communication device and the destination communication device which will relay both the signalling and payload messages between the devices, in short signalling and media.

[0044]The called user agent 4 using the destination communication device receives the offer message from the source communication device of the calling user agent 1...

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Abstract

A method of negotiation of media between a source communication device and a destination communication device for multiplexing multiple media types on an IP transport address comprises the source communication device generating an offer message comprising an extension to the ICE protocol according to RFC 5245 to specify the IP transport address whereon the multiple media types can be multiplexed, wherein the offer message comprising the extension indicates support for both the multiplexing and a non-multiplexing of the multiple media types, and sending the offer message from the source communication device to the destination communication device.

Description

FIELD OF INVENTION[0001]The invention relates a method of negotiation of media between a source communication device and a destination communication device for multiplexing multiple media types on an IP transport address. The invention further relates to a computer program product for executing such a method and to a source communication device for negotiating of the media between the source communication device and a destination communication device.BACKGROUND OF THE INVENTION[0002]The Internet Protocol (IP) is a widely used protocol which nowadays is extensively used for telecommunication, for example for Voice over IP (VoIP). Along with voice data, it is possible to convey via IP other data such as a picture, e.g. in form of a bitmap, and / or text, e.g. in the form of an ASCII file (American Standard Code for Computer Information Interchange). It is thus possible to establish a multimedia session using voice along with text and / or pictures / video data, e.g. in the form of a video c...

Claims

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Application Information

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IPC IPC(8): H04L29/12H04L12/741H04L45/74
CPCH04L45/74H04L61/2007H04L65/1069H04L65/80H04L65/762H04L65/65H04L65/70H04L61/5007
Inventor HUTTON, ANDREW MARK
Owner RINGCENTRAL INC