I'm curious about is there any way to detect phone number when accessing my website via 3G.
I did some research on the Internet and found these headers that can help me extract the phone number. But I can not get anything.
X-MSISDN
X_MSISDN
HTTP_X_MSISDN
X-UP-CALLING-LINE-ID
X_UP_CALLING_LINE_ID
HTTP_X_UP_CALLING_LINE_ID
X_WAP_NETWORK_CLIENT_MSISDN
May I extract phone number from the one who accessing my website via 3G?