Distributed call pickup group for VoIP system

A method for performing call group pickup by a call manager having a group pickup module, the method comprising:

• receiving an incoming call;
• determining with the call manager a first extension for the incoming call;
• determining by the call manager whether the first extension is included in a group pickup list;
• receiving by the group pickup module a pickup signal from a second extension;
• storing information about the incoming call until it is redirected in a group pickup call stack;
• redirecting using the group pickup module the incoming call to the second extension using an indication signal that provides information necessary to redirect the incoming call;
• receiving a keep alive signal corresponding to a pending call stored in the group pickup call stack;
• and
• removing the pending call from the group pickup call stack if the keep alive signal is not received for the pending call within a predetermined amount of time.

A non-transitory computer-readable storage medium storing instructions that when executed by a computer cause the computer to perform a method of performing call group pickup, the method comprising:

• receiving an incoming call;
• determining with a call manager a first extension for the incoming call;
• determining by the call manager whether the first extension is included in a group pickup list;
• receiving by a group pickup module a pickup signal from a second extension;
• storing information about the incoming call until it is redirected in a group pickup call stack;
• redirecting using the group pickup module the incoming call to the second extension using an indication signal that provides information necessary to redirect the incoming call;
• receiving a keep alive signal corresponding to a pending call stored in the group pickup call stack;
• and
• removing the pending call from the group pickup call stack if the keep alive signal is not received for the pending call within a predetermined amount of time.