Master VOS3000 callee balance verification with SERVER_PHONE_AS_CALLEE_MONEY_VERIFY. Prevent free inbound calls to zero-balance accounts and protect revenue.
Tag: VOS3000 account balance before call
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Master VOS3000 callee balance verification with SERVER_PHONE_AS_CALLEE_MONEY_VERIFY. Prevent free inbound calls to zero-balance accounts and protect revenue.