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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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How does a web session remain consistent when changing connection?

When browsing on a mobile device, it is possible to change multiple times between a 3G and WiFi connection, with associated IP address change. How does a website maintain a user's session when their connection changes, as it would appear to be a new…
colincameron
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android connect to server via 3g not wifi

I am looking to create an application that sends a live video stream from a phone to be stored on a server, using 3g. I found spydroid which is very similar to what I want to do. Looking through the code I just realised it uses wifi not 3g. My…
Felix
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onDataConnectionStateChanged state param is always 0

I am trying to use PhoneStateListener to handle connection state changes. I've registered the listener inside onCreate method of a service. The overriden method onDataConnectionStateChanged(int state) of the listener is being called when I enable or…
Pancho C.
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Connecting via TCP to a 3G mobile device

So basically I'm trying to achieve a TCP connection (ServerSocket, Socket) to a 3G mobile device running an ad-hoc service on Android (the client I'm using is an Android x86 desktop PC, but it could also be another 3G mobile device). WhatIsMyIP…
Federico Cristina
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How does MSC forward a SMS to the mobile

What is the role of BSC and BTS in forwarding the message to the mobile..
someonespecial
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webView with proxy setting

I just know that :WebView.enablePlatformNotifications(); it's obsoleted now. I add this code in my Activity DefaultHttpClient httpClient = new DefaultHttpClient(); HttpHost proxy = new HttpHost("X.X.X.X", portNumber); //proxy that i need…
notree
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How to identify if an ISO7816 communication is GSM or EMV?

I have read the ISO7816, 3GPP, and EMV datasheet, but I havn't understood how to identify if the communication is GSM or EMV or anything else. The problem is that commands are different beetwin each protocol, but have sometimes the same INS (GSM…
MokaT
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android mediaplayer over 3g connection not work but work on wifi

I am working on a project that uses videoView to display a .mp4 video from url. My code works in the emulator fine but on the physical device (Samsung siii) it only works over WiFi and not work over 3G.
Muhammad Umer
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Reachability airplane mode (3G) vs. Wifi

I know the Reachability code will provide if the phone has access to Wifi or 3G network. However, if the phone has 3G on and Wifi, the Reachability code defaults to saying the phone has Wifi on and I can't detect if 3G network is enabled or not…
C0D3
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How to use any Internet connection in Android app (wifi, 3g, 4g, etc)?

I am writing an app that requires using the Internet. Some relevant bits of code that I have are: and private…
Kalina
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Android 3g on off event

Is there any broadcast event when 3G been ON or OFF ? For now I was trying to receive following event:
RRTW
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Determine 3G Capabilities on iOS Device

I've been searching the internet for a while now, but I can't seem to find anyway of determining if the device an app is running on supports 3G data. I don't want to be able to see if it is currently active which is what the Reachability class does,…
JazzyHack
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Android:Switching between 3G and GPRS programmatically?

Is there a way to switch from 3G data to GPRS and back prorammaticaly.assuming there is no wifi involved.. Or is there a way to find out weather phone uses 3g or GPRS? 3G enable and disable is available is wireless&network Communication in phone…
Amel
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HttpsURLConnection server_name corrupted (?) over 3g

As per Google recommendation, I am using HttpsURLConnection for my api-level 15 project. My test case is very simple : URL url = new URL(STATS); HttpsURLConnection we = (HttpsURLConnection)url.openConnection(); InputStream in = new…
Horrendo
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Remove headers from HttpResponse (only with 3G connection)

I'm implementing an application that does REST calls to a server to get a JSON response. If I do these calls connected to my home's Wi-Fi connection I get the result WITHOUT headers: {"id":"ohig40o45h6c2a5d9rdhsft2v7","module_name":"Users",…
PX Developer
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