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Questions tagged [3g]

For questions about 3G mobile networking and communications standards and their implementations.

535 questions
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Android: How can we know the current connection type (ex. Wifi, 3G, 2G...) programmatically?

I see this thread but it could not help me much.
Bao Le
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android rtsp over 3g using external IP

I'm developing an app for android for my internship project which is stream a H264 DVR camera to Android as the client.Whenever I use Wifi only I can connect to the DVR using the internal IP, 192.xxx.xxx.xxx with logcat saying 04-04 14:30:14.680…
Fay Zan
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Problems loading images on 3G connections

I've been asked to help diagnose issues with a website which uses stellar.js to create a parallax type effect that continues to work on mobile devices. While connected to the office wifi the website loads all images and performs normally. On 4G the…
MikeK
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Running sakis3g on a Dart card causes it to reboot

I'm trying to use a 3G modem (USB dongle) on a Dart card (which is like a Raspberry Pi with a iMX6 CPU). After reading a bit on the internet, I settled on running the following command (after doing the necessary mode switching for the…
Andy Thomas
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Why the Http Post in my android application gets Timeout exception when the device is connected via 3G?

In my Android application I run a http post and I get timeout exception when i am connected via 3G/4G and not via wifi (I send images but this happened with images of 1 Kb as well, the problem it's not the size of image, I am sure about this). Here…
alfo888_ibg
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Send data through 3G hardware device onto ftp site?

(Note: I am NOT talking about an iphone/phone.) I'm planning to get developed an independent hardware device which will be located in locations with just a power connection and 3G connectivity. These devices will monitor certain environment…
TGeorge80
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how PCRF and PCEF share the static rules information

when PCRF needs to provision a static rule for a session, how PCRF determines a static rule which is predefined in PCEF ? Do they share common database ?
user2757415
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Is P2P problematic on mobile networks? (ports etc)

I'm currently thinking about writing a text/voice chat tool that is fully e2e encrypted and runs on Android, iOS, Linux, OSX and Windows. (Btw if you know a tool that already does all of these things and is pretty much plug-and-play, please let me…
Forivin
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Dealing with different IPs assigned to device via Edge and 3G when connecting to a Microsoft Load Balacing environment

I'm working on mobile web application targeted toward Webkit-based browsers on devices such as iPhone, Android, etc. I've noticed that when and iPhone switches from Edge to 3g or vice-versa a new IP address is assigned to the device, which makes…
Scott Allen
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Android - Connecting to localhost URL from mobile (3g/4g) network

I am making an app that sends user data to a javascript server hosted locally. It sends the data fine when my phone is on WiFi, but it gives an error ('failed to connect to: "/MY_LOCAL_IP"("PORT")) when I turn off WiFi. Is it even possible to…
Siebrand Romeyn
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wifi and 3g iphone and mac app comunication

I created two apps, one for iphone and one for mac. They communicate back and forth. The iphone is used as a "remote control" to do things on my mac. For now it just changes the color of a text label on the mac app when I press a button on the…
objectiveccoder001
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Download Speeds on 3G Incredibly Slow

I'm running a simple AVPlayer in my app to play videos. When the play method is called the video is extraordinarily slow. The first frame will load, then the video will stop, then play for a second, then stop again for an indefinite period. Once the…
thank_you
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AT#MONI on Huawei 3G modem (model E3131) not working

I try to locate my position using 3G modem connected to my PC and the triangulation method. So, I need to identify the cell towers id in my neighborhood and to do that I use AT commands and specifically AT#MONI=7. I know how to determine the cell…
Hamza
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iPhone: Code works in 3G but not 3GS

I've got a REALLY strange problem - my testers report problems (app is hanging, not crashing) on 3GS, but NOT on 3G... this is the code where I'm assuming the problem: - (void)applicationDidFinishLaunching:(UIApplication *)application { …
swalkner
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Using cellular data crashes application when using NSUrl + NSData

I have an application made in Swift that uses NSUrl and NSData to get a JSON response from an API. If I am on cellular data, the app closes as soon as it tries to make the connection. On WiFi (or the emulator) it is fine. I found this article which…
Mr Pablo
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