Festival owners Diamond Sporting Group, and its event security firm Showsec, have appointed ECS for the event on 24-26 May.
Held at Bournemouth Sports Club, the festival attracts around 20,000 visitors to watch more than 300 rugby, netball and dodgeball teams compete, alongside live music and family entertainment.
Roger Woodall, festival director, said: "I’m delighted to appoint Event Communication Services as our radio communications supplier to help us with the security and stewarding for the festival.
"It is evident that the team has a proven capability to implement modern communication systems festival security and we’re looking forward to working with them."
ECS has been working closely with the festival team to design a dedicated radio communications system in its first year of holding the contract.
A team of ECS staff will be on site, supporting around 150 radio users between Diamond Sporting Group and Showsec.
Tom Ross, managing director at ECS, said: "The Bournemouth 7s is becoming a highlight in the festival calendar and it has been on my radar for some time in terms of becoming a supplier. It is a great local win for us."
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