Calls may be forwarded to other offices, cell phones, extensions, automated attendants, voice mail box, or other options depending upon the needs of a business.
Cell Phone Gateway
Phone numbers or queues coming to PBX phone system and then forwarded to another number can cost less than permanently assigning a cell phone to a particular company line. In addition, queues and menus can be used before sending the call to a cell phone adding flexibility, an example being a customer service queue for a call center, or legal message played before connection.
Telephone Level Call Forwarding
Each phone has the capability to forward incoming calls off to another number. This can be an outside line such as an internal extension, automated attendant, or an employee’s personal cell phone. A list of numbers or IVRs are stored on the phone to quickly enable or turn off the feature, as in when leaving the office for lunch.
Time Based forwarding
Depending on the time zone of the office, one branch of a company might be open and available to field calls while the other is asleep. To take advantage of time based routing, an office can be set to only receive calls during open hours. The call is instantly routed behind the scenes to an available member.
Work at Home Options
Within the PBX, calls can be routed to and from employees working from home. The land line or cell phone can be added to a queue or receptionist line, based upon company preferences for order of operations.

