Lagos, Nigeria (CNN) Frehiwot Negash picked up the phone and called a random number.

The Ethiopian finance manager was trying to test if indeed she could now place a call to Eritrea after 20 long years of being cut off from the neighboring country in the aftermath of a bloody border war.

The person on the other line answered. It was a hotel.

Negash, 33, told CNN: "The receptionist picked up. So I said 'I'm calling from Ethiopia.' Then I passed the congratulations message to her, and I told her that I am very happy and she also said 'I am happy too."

Just made my night. I called Crystal hotel in #Eriteria and talked with the reception. We are very happy. #Ethiopia #Eritrea ❤❤❤❤ pic.twitter.com/KXFxYZDTBi — Frehiwot Negash (@FrehiwotNG) July 9, 2018

Negash says she now plans to visit Eritrea later this year.