For those who successfully use CDMA modem/phone for internet but want to use features like SMS, phone book or PIN code manipulation often available in proprietary software for Windows...

Unlike Windows version, it's a CLI tool. So you can easily use it in scripts.


  • PIN code authentication
  • Ask for PUK code if PIN code is wrong
  • Enable/disable PIN code
  • Change PIN code
  • Synchronize host's clock with CDMA station's clock
  • Manage your phone book
  • Switch modem into different working mode: hybrid, 1x, EV-DO
  • Send and receive SMS
  • View, add and remove SMS from SIM card


  • Optinaly save SMS into SIM card when reading SMS
  • UNICODE support in SMS

Near future

  • Manual page
  • Work in interactive mode
  • Show signal quality
  • Support as many modem/phone models as possible


  • cdma-0.10.tar.gz - Working with stored SMS for C-motech CCU-550 is implemented (Last updated: 16 jan 2008)

Supported models

  • C-motech CCU-550
  • C-motech CCU-650U
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