||There are Chinese versions with different product names like the S3588i which is a S35i. Below are all documentations I know. If you have a GSM data adapter you have to search Siemens’ web pages.
is for custom ringtones, logos and vCards; again there is more to discover.
– IrMC Level 4 is supported since Siemens S45i.
– Siemens’ binary protocol for cable connections: BFB and BFC.
– OBEX (IrMC, Folder Browsing) works without BFB since platform 55.
– Documentation for the Siemens Wireless modules