Pool Access Restriction (#315) 4
Use this feature to restrict a pooled extension from receiving and/or making outside calls on all lines belonging to a specific pool. For example, you may want customer service representatives to make calls using the WATS lines that belong to auxiliary pool 881, but not receive incoming calls on the lines in that pool; in this case, you assign pool 881 to the customer service representative’s telephones and restrict the pool to Out Only.
This procedure is the most extreme way to restrict dialing. For example, an extension set to In Only or No Access for a particular pool cannot select that pool to dial out—even for numbers on the Emergency Phone Number