Private Branch Exchange (PBX) is a private telephone network used within a company. Users of the PBX phone system share a number of outside lines for making external phone calls and local extensions for internal dialing.  Galaxy has experience integrating PBX solutions across remote projects all of which have been configured Quality of Service (QoS) and high quality voice calls over the satellite link.  PBX are available in both physical and virtual forms and integrated seamlessly with Galaxy’s SMU appliance.