Call forwarding
Automatically redirecting an incoming call to a different number — an old, standard telephone feature made of several separately configured trigger conditions, not one universal switch.
Common trigger conditions include no answer after a set number of rings, the line being busy, the phone being unreachable, or a manual always-on toggle — each usually its own separate setting. Knowing a phone system has forwarding capability says very little about which specific situations it will actually catch.
A deli's old landline had an after-hours rule: no pickup, ring the owner's cell. That rule lived in the old system's own configuration, not in the phone number itself — when the deli switched phone systems entirely, the rule didn't carry over automatically; it had to be set up fresh.
The single most consequential mistake is treating “the system has forwarding” as covering every way a call might fail to connect. Forwarding also isn't the same as guaranteeing a call gets answered — it only changes where a call rings, not whether the person at that destination is actually free to pick up.
When a call already in progress runs into trouble partway through, Dohos is designed to say so briefly and attempt a configured number — a manager's, then an owner's as fallback — covered on Reliability.
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