Israel's telephone code is 972.

To call to Israel from Russia, you first need to dial "8", wait for a dial tone, then dial "10" for an international call, and after that the country code is 66. After that you will need the city code and phone number itself. For example, in Jerusalem code 2, so to call there, you will need to type:
8-ring-10-972-2-phone number.

For other country codes of Israel see here.