The phones without the facilities of Internet access, text messaging, e-mail or camera are called Kosher Phones.
These types of phones are introduced to fulfill the demands of Jewish orthodox religion.
The Jewish orthodox religion restricts the use of standard mobile phones. The Kosher Phones have crabbinical approval for use in Israel and elsewhere by observant of Orthodox Jews. These phones are also approved for use by essential workers such as health, security and public service worker where use of any electrical devices is strictly prohibited. Some other people also prefer these phones for its simplicity and for ease of use.