Very impressive, I notice he's using a chip for GSM/GPRS - UC15EA. I'm wondering if anyone's used an SDR to make a cellphone, as I've seen GSM base stations im

Very impressive, I notice he's using a chip for GSM/GPRS - UC15EA. I'm wondering if anyone's used an SDR to make a cellphone, as I've seen GSM base stations implemented with SDR, but not cellphones before.