voip

My target is to have a push-to-talk chat app in GSM/UMTS/LTE networks; initially I wanted use multicast addresses and peer-to-peer without overload the server; unfortunatly, after deep investigation, I discovered that multicast is not allowed in GSM/UMTS/LTE networks, therefore I have to use the server in order to bounce the VoIP packets. I' don't like very much this solution because I have to overload the server, but I didn't find any better solution. If you have an alternative solution is very much apprieciated... Therefore I have to send VoIP from an android client to a server (PC), and

I am writing a VOIP application on iOS 5 and I am trying to understand how the actual communication can stay alive while in the background. I understand there is a maximum amount of wakes the socket can get per amount of time. My problem is that my socket connection receive too many wakes messages, because of that the app is terminated with crash message: exceeded 15 wakes in 300 sec What I really don't understand is how is the socket supposed to be able to constantly send and receive data through it (for VOIP needs) if there is a limit for the amount of data it can receive per amount of time?

My App Requirement : I should maintain a socket connection to trigger local notification on server push without using Push Notification(APNs) for some reasons. So I am using the VOIP background capability of iPhone to maintain socket connection. 1. I have configured a stream for VOIP in order to persist socket connection to run in background, so what Timeout value should I set? Will the socket connection terminates once the timeout expires? How do I make my application to listen to the socket all the time.? Client stream configuration is as follows, NSString *urlStr = @"http://192.168.0.108";

I need to integrate VoIP service in my Android application. Is there any free (best open source) library ? I need that the library at least allows voice call over internet and not necessarily internet to phone (like 2 Skype account). Juned From android version 2.3 SIP API is added in Android. you can use either inbuilt SipStack library or third party open source sip stacks. Refer Android Developer's Guide There are different open source sip stack libraries as well as projects are available on internet. You can download the source code of that projects. Here is the List of some popular open

I'm making a benchmark App for test purposes ONLY. I am not intending this to go to the App Store. What I need is my NSTimer to continue running on the background using a UIBackgroundTaskIdentifier, save data to a Core Data db and finally push the data to a server (I'm using Parse), after a certain time interval, of course. So basically, I haven´t found any questions which apply to my specific case. I set my NSTimer like so: UIBackgroundTaskIdentifier bgTask; UIApplication *app = [UIApplication sharedApplication]; bgTask = [app beginBackgroundTaskWithExpirationHandler:^{ [app endBackgroundTask

I am getting a VOIP socket to run in the background in an iOS application. My connection works fine, but it won't wake up when my app goes into the background. If I open the app back up, though, it responds to any messages it got while it was asleep. I set up my stream like this: CFStreamCreatePairWithSocketToHost(kCFAllocatorDefault, (CFStringRef) @"test.iusealocaltestserver.com", 5060, &myReadStream, &myWriteStream); CFReadStreamSetProperty ( myReadStream, kCFStreamNetworkServiceType, kCFStreamNetworkServiceTypeVoIP ); CFSocketNativeHandle native; CFDataRef nativeProp =