Information from phone module

[_jr_]

But it would still be interesting to know whether using the module's GPS will automatically enable the antenna and contact cell towers for assisted mode. I always assumed this to be the case, but it would be nice if it were optional.

 

[WizardStan]

Found the PHS8 AT command set which includes GPS commands.

Apparently you can choose, at initialization, whether to use GPS or A-GPS.