When a municipality decides in the manner above provided to acquire an existing plant by condemnation, it shall give notice to the commission which shall determine the just compensation which the owner of the plant is entitled to receive from the municipality. Before deciding upon the compensation, the commission shall, at a public meeting which may be adjourned from time to time, hear all interested parties on the question involved. The commission shall by order fix the compensation and furnish a copy of its order to the municipality and to the telephone company concerned. An appeal may be taken to the district court of the county in which the plant is situated from that part of the order fixing the compensation to be paid, within 30 days, by either party. The appeal shall be tried the same as other appeals hereunder. If no appeal is taken, the order of the commission shall become final at the end of 30 days.