@zumbafanforever Yeah, but it might also just keep your value intact.
Not sure what you do, but it does not sound like you're honing your skills or learning new ones.
Your position might eventually get outsourced - there is money to save when staff sit idle as part of their role.
Consider who will want to hire you, if you tell them 'I sat on call for the past four years, working maybe 20%'.