Queue polling strategy, fan out

[David.Eagle]

Hi I have had a number of clients want to have a call ring at reception extensions, then if un answered on the first poll, ring an additional number of extensions and the next poll ring more extensions.

So effectively fan out across multiple departments if a call isn't answered.

We have tried with ring groups and queues, however there is a pause with calls transferring to the next queue/group. So a polling strategy with multiple "waves" would be really beneficial.

Thanks

David