Our PCB designer won't give us his project files (Altium / Eagle)

Here's a PDF that does a pretty nice job of defining the process: https://www.google.com/url?sa=t&rct...vZhSYq3smATTDtA&bvm=bv.61535280,d.aWc&cad=rja

Here's another useful link: https://bayareacircuits.com/bare-printed-circuit-board-electrical-test/ concerning electrical test. Basically, not all of the boards are typically electrically tested.

Since you mentioned GPRS, I'll mention "controlled impedance". This may be necessary on your board. See: https://bayareacircuits.com/controlled-impedance-for-printed-circuit-boards/