Tag Archives: iPhone-GSM codes

GSM codes for supplementary services / information
Here are some sites that list some more of these codes:
·    Codes to be used with GSM phones.
·    GSM codes.
·    GSM feature codes.
·    GSM features that aren’t widely known.
·    iPhone Dev Wiki – Phone codes
·    More secret iPhone codes.
Since the iPhone is a GSM phone, you potentially have access [...]