Thanks...SIM's is a niche I'm really not familiar with...Lippert says it requires an AT&T SIM...and I couldn't tell if I could just swap in a Cellphone SIM...I

Thanks...SIM's is a niche I'm really not familiar with...Lippert says it requires an AT&T SIM...and I couldn't tell if I could just swap in a Cellphone SIM...I suspect you can't. The industry has done a great job of locking up access behind fee structures.