CALLS appears to be related to cryptocurrency projects, potentially involving Telegram bots and presales. CallerInu Subscription offers a bot that monitors call channels for investment opportunities with anti-MEV features, staking, NFTs and DAO governance. Other related projects include DONT presale and NON OF US Presale which involve exclusive communities and 'shreds' of information. The projects emphasize security with SAFU, DOX, KYC and audits.