Questions tagged [gsm]

"Global System for Mobile Communications". Used by phones on most carriers, but is specific to the make of phone. Most AT&T phones, for example, are GSM.

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How is the GSM Call Flow implemented and when is the microphone opened?

Is it possible to know how is the GSM call flow implemented on Android? I will like to know concretely when its the microphone opened.
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Nexus 5X loses GSM connection permanently while roaming

Sometimes (perhaps once or twice per week), while driving car, using mobile network ("blitzer.de" app) and roaming between different network cells (only cells but same provider), my Nexus 5X (Android ...
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How to deal with “short GSM IDs” in Tasker

My "cell near" in Tasker looks like this: GSM:4321.99011048 / 0 GSM:4321.99011052 / 0 GSM:4321 / 0 What is that short ID? If I take it out, my profile sometimes triggers as "leaving" even when I ...
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5k views

Is it possible to call AT-commands in android? [duplicate]

I am newbie in android, I have a very simple question for android experts:- " Is it possible to call GSM AT-Commands in android just like we use in microcontroller programming through USART".
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GSM Rom To CDMA Rom

I have a marvelc (HTC Wildfire S CDMA) and was wondering if there is a way to convert GSM roms (for the marvel) to CDMA (for the marvelc). This rom looks nice but its for the marvel, not marvelc. I ...
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Verizon GSM SIM card for unlocked Samsung Galaxy S2 [duplicate]

I have an unlocked Samsung Galaxy S2. I bought it from Bangladesh. It has been working well with any Bangladeshi GSM SIM card. I just arrived in USA. Is it possible to get a Verizon GSM SIM card for ...
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1k views

XYZ X1 Change band from 900 to 850

I just bought the XYZ X1 Android phone with GSM: 900/1800MHz, WCDMA 2100 MHz Unfortunately in my country are 850/1900MHz frequences. Is it possible to change the band on this phone? I've tried to ...
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251 views

Issue in GSM for Straight Talk and MMS.

I just purchased a GSM unlocked Android phone. And called into Straight Talk to get the new APN setting. But, the settings they gave me would not allow me to receive MMS. The web and testing ...
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2k views

Cyanogenmod no service?

I had cm-11-20150517-NIGHTLY working, then upgraded to cm-11-20150607-NIGHTLY. Now I get the error "No service" and have basically no GSM functionality whatsoever. If I attempt to select a network ...
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1k views

Can I get GPS coordinates without internet? [duplicate]

am I able to get GPS coordinates for my app with Google Maps API just with GPS and GSM (no mobile internet or Wi-Fi)? Thank You!

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