I'm currently trying to port a SIP stack library (pjSIP) to the PSP Console (using the PSPSDK toolchain), but I'm having too much trouble with the makefiles (making the proper changes and solving linking issues). Does anyone know a good text, book or something to get some insight on porting libraries? The only documentation this proje...
I'm looking for a intermediate/advanced book(s) on the explanation of VoIP protocols and related technologies. I'm focusing on SIP in particular but if there are titles that include H.323 also then that would be a bonus. Thanks. ...
I'm looking for a very simple way of answering a call placed down a SIP trunk. I don't need anything more than being able to answer the call when it rings and being able to detect when it has ended. Does anyone have any good pointers to get me started? Ideally, I'd like to find some simple open-source C++ code that I could use as a ba...
I looking for a way to programmatically start a VOIP call using the SIP stack on a S60 Symbian mobile phone. Some of the later S60 devices have a built-in SIP client. Is it also possible to access the SIP stack using some S60 library on those devices. Or does anyone know of an external SIP stack that can be used on S60? ...
If I'd like to control the IP phone from my web application, how should I begin? Let's say I have a standalone IP phone connected to the provider of IP telephony services. On the other side I have a server-side web application for the sales support. I'd like to initiate a call on my phone from this web application, on the other side I'd...
I'm working on developing a SIP application in Java and wondering what is the most used SIP library currently. MJSIP? ...
I'm looking for a good SIP library either written in C# or that provides a C# wrapper. Does not necessarily need to be free. Has anyone used anything good? To clarify, I'm talking about the VOIP protocol SIP. I'm really looking for more than a google search on this one. I would like to someone to come back and say "We use __, and it...
Is there any Open Source Code availbale for makeing A SIP Dialer in C# or any other language ...
We have a custom built WPF CRM and are looking to integrate a soft phone client so that operators don't have to manually enter phone numbers. From what I can see on the web there are no WPF soft phone clients and it looks like we'll have to build our own from scratch. Does anyone know of any WPF soft phone implementations out there? I ...
I want to build a VoIP test environment for a student project. It should use SIP. My first idea is to use Asterisk, OpenSIPS or FreeSWITCH for the server and SIP Communicator, Minisip or Linphone as softphone clients. Does anybody have experience with setting up such an environment? Which combination should I use? Are there any tutor...
Hi, We're working on a SIP softphone and we get audio feedback when we call from one phone to the other. However, when we call from a normal SIP Phone (software or hardware) to our app, then it all works fine - it's only when calling from one phone using the app to another one. Here is the code we use to initialize RIL Audio: publi...
Hello I'd like to write a small IVR application with Asterisk, and provide a Delphi client that can SELECT all unanswered calls from a database and provide a "Call" option when the user right-clicks on a record. So I need a basic SIP client just to dial out, and also handle incoming calls for those users who are OK with a headset inste...
What is the difference between SIP response code 407 and HTTP response code 407 (Proxy Authentication Required)? ...
Hi all! I have this challenge to build an sip softphone using c# or .net technologies. Please guide me the technology, requirements and specifications that is needed to build such. Possible requirements: Supported codecs: G.722.1, G.723.1, G.726, G.728, G.711, G.729, G.723.1, iLBC,: G.711 (A and m-law),G.729A/B/D/E, AMR, GSM 6.10/EF...
Hello, Is it possible to create and send a SIP packets programmatically to a registered SIP device ? I would like to send a SIP notify message, something like shown below: NOTIFY sip:[email protected] SIP/2.0 To: <sip:[email protected]>;tag=78923 From: <sip:[email protected]>;tag=4442 Date: Mon, 10 J...
I need to load balance incoming calls to asterisk. To do this, I have set up the Openser server in front of it and I loaded and configured the dispatcher modules to do so. What I want to do is that the Openser server will receive the calls and route them to the least "busy" Asterisk server which will take care of the rest (I have an IVR ...
What I want is a SIP softphone that can run on Linux and popup browser window on incoming calls, like: http://www.mycrm.com/contact?phone=#detected_phone_number# ...
Hi, I've been investigating various API options for making use of the SIP (Session Initiation Protocol) in Java. So far I've narrowed it down to JAIN SIP and MJSIP but I can't figure out the difference between the two. Can someone please explain why and when to choose one over the other? Thanks in advance. ...
I need to write python application connect to trixbox that run as SIP server. But I not found any library that implement in python. I found SIP SKD at http://www.vaxvoip.com/ but it not support python. Can anyone suggest me an alternative to VaxVoip? Thank you. ...
I've managed to set up a SIP call using the JAIN-SIP API for Java. Now I would like to stream some video once a dialog has been established. I've read that this is possible with SDP and RTP, and I've found multiple examples on how to define a SDP/RTP body in a SIP packet. But once you have negotiated capability etc. on nodes, how do yo...