Managing the dial plan and call routing rules of multi-site, multi-vendor enterprise VoIP networks can be an extremely complicated and time-consuming activity. AudioCodes Routing Manager (ARM) delivers a powerful, innovative solution to this problem by enabling centralized control of all session routing decisions. Through ARM's highly intuitive graphical user interface, system administrators are now able to design and modify their voice network topologies and call routing policies from a single location, resulting in significant time and cost savings. Time-consuming tasks, such adding a PSTN or SIP trunk interconnection, adding a branch office or modifying individual users' calling privileges, can be carried out simply and rapidly.