If you mean that the call is ending up in the VM of the original called number, and not the last number it was directed to, you should start by mentioning what products and version you're using, and not just the problem/question to get an answer.
Your question is very common, as many others are, and if you come here frequently, you'll see it's quite common for users to be told that they can find the answers by just searching, by a lot of people who spend quite a lot of time here.
Assuming you have CUC, advanced -> conversation -> Use Last (Rather than First) Redirecting Number for Routing Incoming Call
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If you have 2 ISR routers, one acting as Failover, do we need to have both the same number of SRST licenses on the 2 routers?
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