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I'm searching how to test the calling signal (if there phone is available to make a call or not. Not the internet or cellular connection, just the calling signal).

Is it possible ? I found for internet and cellular connection but not for calling signal.

nobody
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Lapinou
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    [How to measure carrier's signal streng](http://stackoverflow.com/a/4955390/1031955). I hope this help. – Thanakron Tandavas Mar 21 '13 at 16:02
  • possible duplicate of [Accurately reading of iPhone signal strength](http://stackoverflow.com/questions/14604273/accurately-reading-of-iphone-signal-strength) – nobody May 23 '14 at 15:56
  • possible duplicate of [Measuring cellular signal strength](http://stackoverflow.com/questions/4954389/measuring-cellular-signal-strength) – andrewsi May 25 '14 at 01:17

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