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From what I understand, both voice and data are using the same antenna (At least 3G).

Sometimes in a remote area, I have plenty of signal but no data service.

Is it possible some cell towers don't offer data (voice only)?

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closed as off-topic by brhans, PeterJ, duskwuff, laptop2d, Kevin Reid Sep 22 '17 at 23:26

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Questions on the use of electronic devices are off-topic as this site is intended specifically for questions on electronics design." – PeterJ, duskwuff, laptop2d, Kevin Reid
If this question can be reworded to fit the rules in the help center, please edit the question.

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GSM by itself does not support data, just voice (even SMS is put ontop of GSM). Data service, beyond the 9600baud CSD (which doesn't seem to be supported by most phones/mobile providers anymore) requires the availability of GPRS or EDGE. Although both systems are very old, depending on where you are, there are still base stations around that only support GSM without any data service.

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