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Thread: Are there any apps that let you use your cell phone as a modem?

  1. #1
    Join Date
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    Default Are there any apps that let you use your cell phone as a modem?

    In conjunction with a usb to serial adapter?

  2. #2

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    Maybe you could use an acoustic coupler with one of these?

    513PTAeaByL._SL1200_.jpg

  3. #3

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    Many years ago i used an old mobile / cell phone as a modem, It was dog slow but it worked, IIRC i had to change a setting in the phones setup and my computer recognised it as a modem, It was connected via USB though.

  4. #4
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    That seems to depend on the quality of the handset. I've seen it work, but mine is sketchy.

  5. #5

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    Quote Originally Posted by Moogle! View Post
    In conjunction with a usb to serial adapter?
    Certainly. But do any phones that run PalmOS (HP WebOS) work on any modern cell networks?

  6. #6
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    The last phone I owned and could use as a modem (via serial or PCMCIA up to 9600bps) was a Motorola Timeport that I had to retire when CDMA was shutdown in 2014.
    I have not seen a smartphone that could operate as a serial terminal with a USB dongle in years. I've never seen anything remotely close to an app that bridged 3G/LTE/whatever data into an emulated modem. The closest was a smartphone running in hotspot mode and a Wifi-232.
    = Excellent space heater

  7. #7
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    There are several projects (including some by forum members) that add an ESP8266 to a D-sub connector to create a modem emulator over WiFi. You could pair that with a hotspot running on your phone. All add functionality to the ESP8266 to speak Hayes AT command set. Some use a dialed number to IPort alias table. Some allow you to ATDT<ip>:<port> directly.
    "Good engineers keep thick authoritative books on their shelf. Not for their own reference, but to throw at people who ask stupid questions; hoping a small fragment of knowledge will osmotically transfer with each cranial impact." - Me

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