Standby Compensation

I ‘ve been asked to draft a proposal for on-call/standby compensation. Our network is rapidly becoming a 24×7 necessity and I must decide how to compensate employees that are on-call for weekends and nights. All network employees are salaried (suggesting that one option would be “work standby or hit the bricks”). Does anyone else have suggestions on how to compensate (financially) for being “on the leash” 24×7?