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  2. Comparison of mobile phone standards - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_mobile_phone...

    Able to produce a reasonable call with lower signal (cell phone reception) levels. Uses soft handoff, reducing the likelihood of dropped calls. IS-95's variable rate voice coders reduce the rate being transmitted when speaker is not talking, which allows the channel to be packed more efficiently. Has a well-defined path to higher data rates.

  3. Cellular frequencies - Wikipedia

    en.wikipedia.org/wiki/Cellular_frequencies

    Many GSM phones support three bands (900/1,800/1,900 MHz or 850/1,800/1,900 MHz) or four bands (850/900/1,800/1,900 MHz), and are usually referred to as tri-band and quad-band phones, or world phones; with such a phone one can travel internationally and use the same handset. This portability is not as extensive with IS-95 phones, however, as IS ...

  4. Cellular frequencies in the United States - Wikipedia

    en.wikipedia.org/wiki/Cellular_frequencies_in...

    Cellular frequencies in the United States are allocated by the US Federal Communications Commission.As cellular mobile telephone technology has evolved over time, periodically bands of frequencies are reassigned from other radio services.

  5. The Best Cell Phone Signal Boosters for Staying Connected - AOL

    www.aol.com/best-cell-phone-signal-boosters...

    Read our evaluations of the best phones for seniors and best cheap phones, as well as a comparison of the iPhone 15 Pro Max and Galaxy S24 Ultra. The Best Cell Phone Signal Boosters. Best Overall ...

  6. You’re Not Imagining It: Cell Phone Reception Is Getting Worse

    www.aol.com/finance/not-imagining-cell-phone...

    A separate test to check my cell phone signal strength found that at home, I had something called RSRP of -108 – generally considered “poor signal,” and at the office, I had RSRP of -111 ...

  7. GSM frequency bands - Wikipedia

    en.wikipedia.org/wiki/GSM_frequency_bands

    Often these phones use multiple frequency bands as well. For example, one version of the Nokia 6340i GAIT phone sold in North America can operate on GSM-1900, GSM-850 and legacy TDMA -1900, TDMA-800, and AMPS -800, making it both multi-mode and multi-band.

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