In scenarios where a correlated CAC restricted subscriber rerouted call ends up to need another subscriber rerouting due to CAC restrictions between the called party and the party that the called party forwarded to.
Figure 1. Double CAC Restrictions in case of Call Forwarding
The forwarding should be thrown back to the original outgoing call and applied from there. This will allow saving PSTN resources (calling and forwarded-to party may have no CAC restrictions) and also the complexity of the resulting call is greatly reduced. Calls are tied in the Lotus Sametime Unified Telephony.
Parent topic: CAC (Call Admission Control) Rerouting