Calculating time spent in an IVR

[igessey]

Hi
Having a bit of a perplexing issue here with CMS Custom reports.
Im trying to write a VDN report (Historical) that will tell me how long a customer spent in an IVR.
Basically i need to enter the main VDN where the caller comes in, up until it hits the secondary IVR that starts queueing to a skill.
I dont want to include agent queueing time, literally just the time after hitting VDN 1 until it gets to VDN 2.

Is this possible with regular database items or can anyone suggest a calculation...

Many thanks

Ian