(Telecompaper) Telefonica and Liquid Broadband are going to court over this summer's auction of spectrum in the 700 MHz band, complaining that the rules are anti-competitive, and seeking to have them changed, according to WirtschaftsWoche magazine on its website. Potential bidders have until 15:00 hrs on 06 March to submit application documents to the Federal Network Agency (Bundesnetzagentur, BNetzA or BNA).