However , this was not sufficient in coverage , due to the inability to roam on non-PCS spectrum .
These phones routed voice call and data services over Sprint 's PCS spectrum while maintaining DirectConnect services over 800 MHz spectrum .
This was not sufficient in coverage , due to the inability to roam on non-PCS spectrum .
These phones routed voice call and data services over Sprint 's PCS spectrum while maintaining DirectConnect services over 800 MHz spectrum .