The phone country code of Angola is +244. Telephone connections, cellular and landline, are heavily overloaded, making communication difficult at times. International lines are, however, often better.
If traveling to rural areas, it is important to take the time to greet the local soba (chief with government-backed authority). A few exchanged words of kindness will open doors for you to enjoy your journey in peace. Failure to inform the soba of your presence, especially if staying overnight, may have unpleasant results for your travels.