Updating airport extreme firmware
Changing cellphone, you can be tracked by SIM card used.
Testing -- We recommend that you test the firewall features of a wireless router after installation and setup using an online service like Security Space.facetime://CONTACT will pop up a dialog asking if you wish to make a video call to CONTACT using Apple's Facetime over Wi-Fi.mailto://EMAIL_ADDRESS will launch the mail program to compose a message to EMAIL_ADDRESS.On the i Phone you can enter special phone numbers to access special features or information.These numbers (or codes) work on most GSM capable phones, and the i Phone is no exception.There are some basic hygiene steps you can take to prevent this from happening to you.
In addition to https://, ftp:// protocol identifiers, the i Phone also supports tel://, facetime://, and mailto:// You must have a complete and valid URL (Uniform Resource Locator) for it to work.
It is unknown whether changing IMEI on the i Phone 3G/3GS using software is possible.
Mode: Connected Line Presentation You will be shown whether Connected Line Presentation is enabled.
IMEI stands for International Mobile Equipment Identity.
It is a unique identification number for every cellphone (including the i Phone).
You must tap dial after each number (unless specified differently in the description).