I realize that this question may be better suited for a cellphone group but most postings that go on there are for unlocking phones and downloading ring tones...
My problem is that I'm thinking of taking a contract to develop a software driver that will provide and interface to several different Cellphones from different manufactures.
For items such as the phonebook, most phones now support the GSM AT Commands to obtain this information. The calendar for example is only obtainable from proprietary interfaces that are not documented from the manufacture.
Does anyone know the legalities of reverse engineering these interfaces? Is it even legal to connect to an embedded system if you are not using the software provided from the manufacture?
I though that I'd post these concerns here, if anyone can suggest a better place please feel free to it?
Thank you in advance,
Jamie