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Questions tagged [3g]

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

535 questions
17
votes
10 answers

Android : Check 3G or Wifi network is ON or Available or not on android Device

How to check that network is available or not on android device programmatically, which throws a message or toast message when we are trying to connect with a network such as Wifi & 3G.
Rahul Baradia
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15
votes
4 answers

android statistic 3g traffic for each APP, how?

For statistic network traffic per APP, what I'm using now is Android TrafficStats That I can get result like following : Youtube 50.30 MBytes Facebook 21.39 MBytes Google Play 103.38 MBytes (and more...) As I know, the "Android Trafficstats" just…
RRTW
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14
votes
5 answers

Force Android to use 3G when on local area wifi without net access

I have a wifi LAN setup which does not have internet access. Just various other local wifi devices connected to it. The DHCP is configured to not return a gateway or dns server. Only an IP and netmask. When I connect my android to this wifi AP it…
Stephen Hankinson
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13
votes
2 answers

Mapping iOS 7 constants to 2G, 3G, 4G, LTE etc

It does not appear as though we can determine the radio access technology on iOS before 7....please correct me if I am wrong. Considering the following constants available in iOS 7, can someone verify which constant maps to which general standard…
Craig
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12
votes
4 answers

Can I prevent iPhone from using 3G under any circumstances?

I'm writing a travel guide related app that will download large databases (60meg) potentially overseas, with the reachability code I can tell when a host is reachable via wifi or 3g BUT I'm worried that if for some reason the wifi connection breaks…
dageshi
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10
votes
4 answers

Xcode 4.3 and debugging on iOS 3.x devices

I just updated Xcode to version 4.3 via the Mac App Store last week, and discovered that I can no longer debug on iOS 3.x devices. I have the iPhone 3G running iOS 3.1.3 and a 1st Gen iPad running iOS 3.2. On both devices it appears that Xcode 4.3…
Wesley Filleman
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10
votes
3 answers

Measuring Download Speed with Java/Android

I am working on an Android app where I need to, as accurately as possible, measure the download speed of the current connection. Here's the best method I could find so far (basically I start a timer, start downloading a Linux distro from a fast…
Daniel Scocco
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9
votes
3 answers

Wifi and 3G same time

For my App I need Data from both, a local Network and the Internet. The local Network (Wifi) has no connection to the internet so I have to use the mobile connection (3G for Example). But whenever I connect to the local Network, 3G stopps. After…
Skolleus
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8
votes
3 answers

cellID and LAC / PSC for 3G neighboring cells in Android

I am trying to identify the neighboring cells location in 3G with Android, which I get with getNeighboringCellInfo(). When The phone works in GSM mode, I am able to use getCid() and getLac() to get the CellID and the LAC, but for 3G, I can only use…
modellero
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8
votes
1 answer

Detect 3G or Wifi Network restoration

Is it possible to implement a PhoneStateListener(or any other mechanism) to detect when either the 3G or Wifi network connection is restored ? I see both LISTEN_DATA_CONNECTION_STATE and LISTEN_DATA_ACTIVITY say (cellular) in the API's summary. Does…
xain
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8
votes
5 answers

How to get the SIM number (ICCID) of a modem using AT commands

I'm trying to get the SIM number (ICCID, not IMSI) of my 3G Huawei E5830 modem using AT commands (also called Hayes command set). Unfortunately, it's not specified in the modem formal documentation.
Forge
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8
votes
1 answer

What happens to TCP connection on 3G tower switching?

I'm randomly getting IOError: request data read error in Django's POST handler while uploading data on 3G network. The question why Django raises that particular exception has already been answered (summary: allegedly happens when client dropped TCP…
vartec
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8
votes
3 answers

iOS - random "Cannot connect to host" with 3G

I am working on an iOS application which works as a thin client for a bussiness server. There is a lot of requests sent to the server, a lot of data downloaded. I don't use any fancy request frameworks, just asynchronous NSURLConnection with a…
Sulthan
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8
votes
2 answers

ASP.NET MVC pages aren't served over 3G or certain proxy servers

We've just pushed out a new ASP.NET MVC based web-app that works fine on all desktop connections, and all mobile devices such as iPhone, etc. However, when certain pages are viewed over a 3G connection (either via a 3G dongle on a laptop, or…
pauldunlop
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8
votes
2 answers

Using Android-emulator to test AT commands by COM from external application

I need send AT commands to a usb GSM modem whith C#. The problem is that i havent no GSM modem or GSM enabled device yet to develop then i was looking for a emulator. The only simulated GSM modem i found was that come with the Android SDK. My…
newway
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