shared line is same extension configured on multiple devices.
A hunt group is a feature in a phone system that distributes calls from a single phone number to a group of numbers in a company. Simply put, when callers ring your company phone number, the group will route the call to a group of members so they can answer the call. People in a group are called members
No a hunt pilot is not considered a shared line. @Nithin Eluvathingal did a fantastic job at explaining the differences. Great work on this (+5)
