Consider buying a local SIM card upon arrival for affordable data and calling options. Ethio Telecom and safaricom ethiopia offers good coverage.
Check the latest visa requirements before traveling. Many travelers can obtain a visa on arrival or apply for an e-visa.
The Ethiopian Birr (ETB) is the local currency. Credit cards are accepted in major hotels and some restaurants, but carry cash for smaller establishments.
While Amharic is the official language, many people in tourist areas speak English. Learning a few basic phrases in Amharic can be helpful and appreciated.