View single post by slychiu
 Posted: Thursday Jun 14th, 2018 11:35 am
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slychiu



Joined: Saturday Apr 29th, 2006
Location: Singapore
Posts: 5493
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You can buy the GSM submodule
but the UCM Firmware for GSM is diferent from the firmware for the regular UCM, so you cannot plug in a GSM onto a normal UCM baseboard
The UCM firmware  uses the Comfort  protocol while the uCM/GSM firmware talks to the GSM module using AT commands

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