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Revision 2 (laforge, 02/19/2016 10:48 PM) → Revision 3/31 (Anonymous, 02/19/2016 10:48 PM)

 
 The Calypso phones typically all have a RS232 port @ 3.3V levels on the 2.5mm earphone jack. 

 Those cables are sometimes called ''T191 unlock cable''. cable'' 

 You can either buy ready-made cables, e.g. at: 

  at  
  * [https://www.akku-king.net/_py_Handyzubehoer-Datenkabel-USB-Motorola-USB-Datenkabel-fuer-Motorola-T191-C113-C113a-C114-C115-C115i-C116-C117-C118-C119-C121-C122-C123-C136-C139-C140-C155-C156/a-20104991/ akku-king.net] [https://www.akku-king.net/_py_Handyzubehoer-Datenkabel-USB-Motorola-USB-Datenkabel-fuer-Motorola-T191-C113-C113a-C114-C115-C115i-C116-C117-C118-C119-C121-C122-C123-C136-C139-C140-C155-C156/a-20104991/] 
  * [http://www.dealextreme.com/details.dx/sku.14664 dealextreme.com] [http://www.dealextreme.com/details.dx/sku.14664] RS232, not USB variant 

 Or you can build it yourself (detailed instructions can be found on the net, search for "t191 unlock cable" or the like). 

  like) 
  * TxD is at the tip of the plug 
  * RxD is at the middle contact 
  * GND is the outer contact 
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