Polycom VS4000 User Manual

Page of 150
Integrators’ Reference Manual for ViewStation EX, ViewStation FX, and VS4000
58
www.polycom.com
Administration, Policies, and Routing
Administration Plan
The videoconferencing administration plan allows the system 
administrator to manage user permissions and network policies. 
Your plan should define:
Superusers
Administrators
Permissions for groups and for individuals
Policies such as bandwidth allocation per user
Default Group Policy 
A group policy allows you to define dialing properties, services, and 
bandwidth management parameters for all members of a defined 
group without having to configure these individually for each user. 
The default group is normally all users, and the policy settings for 
this group are the default group policy. The administrator sets 
policy, services, and other settings for this and other groups.
Least-Cost Routing 
Least-cost routing enables calls that originate inside the 
organization to be routed in the manner that incurs the lowest 
expense. In order for least-cost routing to be implemented, the 
network topology must be defined — the gateways on each 
network, WAN link capacities, and other factors.
Each gateway has an associated least-cost routing table which is 
created by the administrator. The table consists of dial string entries 
(country code, area/city code, etc.) and cost. For calls between 
networks, the tables are compared to identify the least-cost route for 
the call. Least-cost routing will not be used if the least-cost route 
cannot be identified, if the required resources are unavailable, or if 
bandwidth limitations exist on the WAN link.