The trust that provides North Devons ambulances is letting people behind the scenes of a typical day in the 999 control room. South West Ambulance Service NHS Foundation Trust (SWASFT) are live tweeting from their control room in Exeter today (Friday) until 6pm. The service hopes to highlight the volume of calls it receives and the range of challenges its operators face each day. The bank holiday period is expected to be one of the busiest for the trust, who estimate they will have to deal with 2,000 calls from Devon over the long weekend. SWASFT director of operations Neil Le Chevalier said the tweetathon would give people a better understanding of what will happen when you call 999. He added: This tweetathon will show just how busy the ambulance service is and will help people choose the right healthcare provider for their medical need. 999 should only be used in a real emergency. You can follow the tweetathon via the trusts twitter handle @swasFT or the hashtag #swasftlive.