An acquisition method of session initiation protocol resource event packet

Abstract

This invention relates to one dialogue agreement materials affair require method, which comprises the following steps: user end starts relative distribution register message with at least one affair package to express user terminal through distribution type to get materials; the register servo or affair servo use distribution type to send distribution information to terminal with needed materials information affair pack; it can take said affair pack through head area or message part in register information.

Description

Technical field [0001] The present invention relates to the field of communication technology, in particular to a method for obtaining a session initiation protocol (SIP) resource event packet. Background technique [0002] SIP (Session Initiation Protocol) is one of the multimedia communication system framework protocols formulated by IETF (The Internet Engineering Task Force). It is a text-based application layer control protocol, independent of the underlying protocol , Used to establish, modify and terminate the two-party or multi-party multimedia session on the IP network. SIP implements the event notification framework and introduces the SUBSCRIBE (subscription) and NOTIFY (notification) methods. The SUBSCRIBE method is used to subscribe, and the NOTIFY method is used to deliver notifications of any changes in an event. The so-called event notification means that a user or resource initiates a subscription to other resources. Since the latter has events that the former is i...

AI Technical Summary

Problems solved by technology

[0019] (1) The Event Server notifies the Registrar of the resource status through the publishing mechanism, which will cause redundant resource status to be published and processed, occupying network bandwidth and Registrar's processing and storage capacity, resulting in waste of resources;

[0020] (2) It is necessary to establish and maintain the subscribed dialog and subscribed instances between UA and Registrar, but the establishment of dialog and subscribed instances does not conform to the existing standards (see RFC3265 or the process description in Figure 1), and the existing standards need to be extended mode of operation;

[0028] (1) This process needs to establish a subscribed dialog and subscribed instance between UA and Event Server. If the subscription associated with UA registration is multiple event packages, UA will establish subscribed dialog and subscribed instance with multiple Event Servers. UA spends more on maintaining subscription dialogs and subscription instances than existing technology one;

[0029] (2) The subscription established between UA and Event Server does not conform to the existing standard (see RFC3265 or the process description in Figure 1), and the existing standard operation mode needs to be expanded

[0037] The shortcoming of prior art 3 is: UA and Registrar need to establish and maintain the dialog of subscription and the instance of subscription, and the establishment of dialog and the instance of subscription do not conform to the existing standard (see RFC3265 or the process description of Fig. 1), need Extend existing standard operating methods

[0039] 1. A subscription relationship needs to be established between UA and Registrar or Event Server to maintain subscription dialogs and subscription instances, which increases the overhead of UA;

[0040] 2. The subscription method registered through this association does not meet the standards of the existing subscription agreement, and the existing standard operation method needs to be expanded

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