Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to call russia [title] Acquire the international prefix. [step] Also called the international dialing prefix (idd) or exit code, the international prefix is the number that allows you to dial outside the country. Many countries have their own code, but several unrelated countries still share the same number.

Ending1: Get the country code for a country you want to call before seeking up to 3 international prefixes. When you're in russia in the united states, you can call the country code for russia's capital or province. Ending2: [substeps] If the international prefix is not common among all countries, use the official national code for the country that you're calling. This is a literal code for " 1 week " or " 1 month. Ending3: [substeps] The european union has an idd, but you can use idd and the 0756 international calling prefix only. For example, united states of america (united kingdom) has an idd, but you could use idd and the 0756 international calling prefix only. Ending4: For instance, an international call from inside turkey and the u.k. starts with 00, while a call originating from greenland or nigeria starts with 009.

Answer format: ending1/ending2/ending3/ending4