Design And Implementation Of Audio And Video Communication Client Based On SIP And WebRTC

With the widespread use of mobile devices,wireless bandwidth growth,making audio and video communications demand is growing.APP as a mobile device,the main medium of communication between people.Users of the communication quality requirements are getting higher and higher,the author's work unit China Telecom Beijing Research Institute,developed based on WebRTC(Web Real-Time Communication,Web Instant Messaging)and SIP(Session Initiation Protocol,Session Initiation Protocol)audio and video The communication client uses Tianyi RTC(Real Time Communication).The project name is Tianyi VV audio and video communication client,hereinafter referred to as VV client.The VV client gives users and developers a completely new and trustworthy choice.The author participated in the audio and video communications client from the needs analysis,summary design and implementation of all links.The functions discussed in this paper are the functions developed by the audio and video communication client,among which the session module,the setting module and the multi-person group call module are more important.Session module,the user can dial the keyboard to enter the contact number or find the contact list,to make audio and video calls.Users can also manage contacts,manually or automatically add local contacts.Setting module,the user can manage personal data,make call settings,update the latest version,upload local log and perform other functions.Call settings can manage calls,set the audio and video encoding,sampling format and so on.Multi-group group call module,the user can innovate groups,invite contacts into the group.Users can initiate multi-group calls,call modes include:chat rooms,group intercom,live and so on.Audio and video communications client development is completed,not only to meet the audio and video calls between users,and the company to promote Tianyi RTC platform played a very important role.The client at the current stage of the use of the operation is relatively good,to meet the basic needs of users audio and video communications and the author's development team can do fast iteration,so that the new features of the rapid update and optimization of existing functions.