China Telecom, China's largest fixed-line telephone operator, was announced last Sunday, Reuters (Beijing, September 12) reported, the VOIP network telephone services that provide voice transmission services over the Internet will be completely banned within the scope of their business areas.
VoIP is a new technology that transfers voice and video files over the Internet and provides communication and data
Overview
The voip function of Android is available in the directory frameworks/base/voip. It includes a package that supports rtp.
RTP support
The RTP support package is located in the directory frameworks/base/voip/java/android/net/rtp. It mainly contains four Java classes:
On the Android platform, the open-source projects of the Voip client include Sipdroid, IMSdroid, CSipSimple, and Linphone. The following compares them:
Link \ Client
Sipdroid
IMSdroid
CSipSimple
Linphone
Sip
3GPP IMS
Pjsip
Osip
Tool Language
Java (Architecture) C ++ (encoding)
Java (UI) C ++ (architecture, encoding)
Java (UI) C ++ (architecture,
I began to study the VOIP/SIP agreement from 09, open source project also saw a few, the earliest Pjsip 05 began to push the time, began to pay attention to, also in their own winmobile project used. Later also saw Sipdroid,imsdroid (Doubango), Linphone,csipsimple (PJSIP).I think the best advantage of Linphone and Csipsimple,linphone is the full platform support, Android,ios,winphone,windows,linux,mac osx,w
What is csipsimple? It is a pjsip-based Android client. I believe that it will not be unfamiliar to anyone who wants to study VoIP communication. Here I will write down how to compile csipsimple.
First download all the android source code from the csipsimple official website.
Open the terminal directly on Mac
Input
svn checkout http://csipsimple.googlecode.com/s
to do not worry, then configure the "Call Options", set "sipdroid priority", in order to facilitate the use you can choose the last item, this ... Translation estimate deserted, meaning "always ask", we hook this in the software interface in the upper right corner of the "5" this button to dial, you can also directly in the interface of the "Phone number" box to enter the number in fact, you can ignore, directly open the phone with the dialer dial-up input the number to be dialed, press the cal
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Multiple parameters can be received in Java and each parameter is displayed.
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Blog address: www.zarezone.cn
Preface demand Source
In the past few days, it has no function to help others build a simple android client. The main function is to call the C code to set the Wi-Fi network of the mobile phone, which leads to technical difficult
(Conversion) Android calls the built-in File Manager to select files and obtain the path. android File Manager
Unlike the sandbox mode of iOS, Android allows you to browse local memory in a file browser. Android APIS also provide corresponding interfaces.
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