Cascaded Ring Groups

[RobColver]

I'm running v20.0 Update 3 (build 806 release). Inbound calls are routed to an IVR and, when the caller selects option 1, it goes to Ring Group A (Ring All) which only has 1 member. If not answered in 15 seconds, the call is then routed to Ring Group B (also Ring All) with 7 members. The problem is that the only phone in Ring Group B that rings is the one for the first listed member. If I remove that first member from Ring Group B and repeat the test, the new first member's phone rings but none of the others do.

If I change the IVR so that option 1 routes directly to Ring Group B, all the phones in that group ring as expected.

Any suggestions what I'm doing wrong or tips on how to troubleshoot this?

 

[RobColver]

When a call is routed to a 'ring all' Ring Group with, say, 4 members, does that count as 4 simultaneous calls until the call is answered? If so, that would explain my problem.

 

[NicholasP_3CX]

When a call is routed to a 'ring all' Ring Group with, say, 4 members, does that count as 4 simultaneous calls until the call is answered? If so, that would explain my problem.

Calls to Ring Groups are classed as 1 SC for each caller calling in.