[Twisted-Python] GPRS/Modem protocol through USB support

Hi, I work for a company that develops telemetry boxes, and that uses the Twisted framework running on the main board. It is planned to integrate a cellular module connected via USB or serial link to the main board. Could you help me to know if GPRS/3G/Modem protocols through USB are supported with Twisted please? And how it is possible to use this interface? Thanks for your help. Best Regards, Simon Andrieu