This used to be called a hunt group/ring group. We can send calls to a set of extensions(and cell phones) to ring at once. That way you can make sure the callers phone call is answered swiftly.
How does this benefit me?
Having multiple users with the ability to answer incoming calls will make the callers experience better. We can make sure that the phone call will be answered faster by giving other extensions the ability to take the call.
Yes, we can put cell phones in a ring group.
We can ring all the phones at once, or in a sequence. For example, if the front desk gets a call and does not answer in 15 seconds we then ring the two phones in the back office.