sip

In my project I want my Raspberry PI to dial an outbound PSTN number. I have a SIP account with an assigned regular phone number and I can make the mentioned outbound calls on OSX using Telephone.app : Now I tried to achieve the same on my raspberry PI using linphonec First I register my SIP Provider with linphone with seems to succeed: $ sudo apt-get install linphone $ linphonec linphonec> register sip:4100000004@free4.voipgateway.org free4.voipgateway.org <PASSWORD> Registration on sip:free4.voipgateway.org successful. Then I attempt to call 004100000018 with results in an error. linphonec>

The Situation I would like to get terminal-based (headless) SIP calls working on my Raspberry Pi and I already tried this using linphone: RaspberryPI: Making SIP outbound calls using linphonec or an alternative SIP soft phone Since I am currently stuck there I wanted to try another option which was SFLPhone . They pointed me towards the ring software project which offers a daemon dring which allows making SIP calls using a scripting interface: Indeed, the daemon can run standalone and be controlled using the DBus API. Note the project have been renamed to "Ring" (version is bumped to 2.x).

I'm trying to understand what is the required parameter in SDP to be able to decode H264 from RTP packets. This is an related to this question , for the answer to that one works only in small number of cases. Example I am streaming from VLC with the following command. vlc -vvv sample_video/big_buck_bunny_480p_h264.mov --sout '#transcode{vcodec=h264,vb=700,fps=20,scale=0.25,acodec=none}:rtp{dst=10.5.110.117,port=5004,ttl=1}' This transcodes the video to: Bitrate: 700kbps Frame rate: 20 per second Resolution: 25% of the original The receiver correctly accepts and interprets the stream with the

I'm using the SIP stack in Android 2.3.4 and everything is working nicely. However, I need the system to use SSL, and have created the following code: SipProfile.Builder builder = new SipProfile.Builder("user","domain"); builder.setPassword("password"); builder.setOutboundProxy("sip:IPADDRESS:5061;transport=tls"); builder.setProtocol("TCP"); builder.setAutoRegistration(true); me = builder.build(); Intent i = new Intent(); i.setAction(Constants.INCOMING_CALL_INTENT); PendingIntent pi = PendingIntent.getBroadcast(this, 0, i, Intent.FILL_IN_DATA); manager.open(me, pi, registrationListener);

I am using native sip apis to implement sip calling in android app and it is working fine but in some devices like CANVAS 3 it was not working .After debugging I found this line of code was returning NULL **manager = SipManager.newInstance(ctx);** That measns that device does not support Sip Apis.But on the same device other application for sipcalling like SipDroid etc are working properly.How it is possible ?Are they do not use native sip Apis??? jcm Just to complement SilentKiller response I would forward my answer to this question but, please, keep in mind that choosing a stack is a quite

I'm looking for a SIP stack to use on the Android platform. Since it's for a client, to be used for commercial purposes, GPL'ed stacks are not feasible. What would you recommend, SO? Alexander Lucas As of Gingerbread, a SIP stack is built right into the API, in the android.net.sip package . There's some demo code that shows how to use it here . You can use the JAIN SIP Stack, it should run out of the box. I did try it 1-2 years ago See my blog post with an example about it http://jeanderuelle.blogspot.com/2008/10/jain-sip-is-working-on-top-of-android.html RADVISION, the company I work for,

1、首先在网线转换器的商家网站下载对应的驱动（先不安装）。我用的是绿联 https://www.lulian.cn/download/list-34-cn.html ，选择mac系统版本的。 2、然后可以在终端输入csrutil status 检查Mac的系统完整性保护（SIP保护机制）是否关闭。 （如果其状态为disable 那么你就直接安装驱动，插上网线就好了）如果状态为enable，那就接着上路。（为啥不能在终端通过 csrutil disable操作其状态呢，此地无操作权限的） 3.重启电脑按住command+r进入恢复模式，点击顶部菜单栏实用工具中的终端，（可以输入csrutil status检查状态）然后输入csrutil disable提示Successfully disabled System Integrity Protection. Please restart the machine for the changes to take effect.后关机重启安装下载好的驱动后插上网线OK（想要开启SIP保护则重复以上的步骤输入csrutil enable即可） 来源： https://my.oschina.net/u/1037605/blog/3111219

传统来说，一部可支持打电话、发短信、网络服务、APP应用的手机，一般包含五个部分部分：射频部分、基带部分、电源管理、外设、软件。 射频部分：一般是信息发送和接收的部分； 基带部分：一般是信息处理的部分； 电源管理：一般是节电的部分，由于手机是能源有限的设备，所以电源管理十分重要； 外设：一般包括LCD，键盘，机壳等； 软件：一般包括系统、驱动、中间件、应用。 在手机终端中，最重要的核心就是射频芯片和基带芯片。射频芯片负责射频收发、频率合成、功率放大；基带芯片负责信号处理和协议处理。那么射频芯片和基带芯片是什么关系？ 1. 射频芯片和基带芯片的关系 先讲一下历史，射频（Radio Frenquency）和基带（Base Band）皆来自英文直译。其中射频最早的应用就是Radio——无线广播（FM/AM），迄今为止这仍是射频技术乃至无线电领域最经典的应用。 基带则是band中心点在0Hz的信号，所以基带就是最基础的信号。有人也把基带叫做“未调制信号”，曾经这个概念是对的，例如AM为调制信号（无需调制，接收后即可通过发声元器件读取内容）。 但对于现代通信领域而言，基带信号通常都是指经过数字调制的，频谱中心点在0Hz的信号。而且没有明确的概念表明基带必须是模拟或者数字的，这完全看具体的实现机制。 言归正传，基带芯片可以认为是包括调制解调器，但不止于调制解调器，还包括信道编解码、信源编解码