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How to know the band Frequency of the Call??

Sistemas Gesinco

March 15, 2018 12:01

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That's the question...

I want to know how to check the frequencies of the bands where calls are made

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4 comments

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  Oscar Colka March 20, 2018 10:09

  Do you mean the bandwidth system takes when making VoIP outgoing calls?

  If so, see below article for reference:

  https://www.voip-info.org/wiki/view/Bandwidth+consumption

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  Sistemas Gesinco March 20, 2018 14:11

  yeah...not the bandwidth...i want to know only the FREQUENCIES of each SIM card in a call...i mean if they r using GSM 900, GSM 1800, GSM 850...WCDMA 1900, WCDMA 850...or whatever

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  Oscar Colka March 21, 2018 02:48

  If you would like to know Frenquencies for each call, I think you can do that through send AT commands to the GSM or WCDMA module. See below screenshot(As I know, the AT command to check frenquency for different Yeastar Products or modules will be different)

  
  What is the purpose to check the frenquency?

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  Sistemas Gesinco March 21, 2018 11:16

  hi first of all thank u... i would try that solution.

  And i need to know if the modules are working because here in Argentina they r going to drop the 2G signal so i need to be sure that some calls could use 3G (WCDMA as i think)