Yes — Kansas regulation K.A.R. 28-34-2 requires an accessible phone that can reach emergency services.
Kansas requires the emergency phone to be accessible and able to reach emergency services.
Citation: K.A.R. 28-34-2
Kansas doesn't specify an exact distance, so accessibility is judged case-by-case by inspectors. A phone visible from the pool deck, with a clear path to reach it, is the general standard.
SouthEast Telephone installs and monitors cellular emergency pool phones nationwide and can help you meet Kansas's requirements.