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Optimal signal strength and quality...

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Make HTTP connection using GSM network, not WiFi...

Send data over GSM radio...

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what is the purpose of using USSD Commands in our J2ME Application? Is this possible?...

Packet Details Markup Language...

AT Commands PHP...

How can use GSM codes for divert calls using objective-c on my iPhone app?...

How to interact with USSD menu?...

Sending SMS through GSM modem in Objective-C...

Android Phone as a GSM Modem...

Accessing the GSM modem on a linux mobile (eg. N900)...

USB GSM Modem (Huawei e160) Error while connecting?...

Android - supress the native In Call Screen and replace with 3rd party?...

Android Emulator occasionally fails to start network...

Is it possible to get information about the operator on iPhone?...

Working with a GSM Modem...

Knowing when GSM/CSD connection has broken...

String pattern/algorithm for PIN & PUK generated from MSIN...

Mobile Phone AT command set emulator: proper syntax for response codes...

Submitting "operator commands" (e.g. remaining cash SIM credits) via AT commands to GSM ph...

Is SMS data 8 bits until transmitted?...

Encryption in GSM Voice communication...

Where I can find the USSD commands specification?...

Accept message from gsm devices and update table periodically...

Send SMS through Asp.net via gsm modem...