154 CHAPTER 7: C ALL DISTRIBUTION GROUPSLinear and CircularHunt GroupsIn linear and circular hunt groups, calls ring sequentially on telephones inthe group, but the behavior differs when the time specified in the TotalTimeout field elapses:■ If the Total Timeout value is less than the sum of all of the Per-DeviceTimeout values, a call that is routed to either a linear and circular huntgroup rings on some, but not all of the telephones in the group andthen is routed to the group’s call coverage point.■ If the Total Timeout value is greater than the sum of the Per-DeviceTimeouts:■ For a Linear Hunt Group, the call rings in order on each grouptelephone and then goes to the group’s call coverage point. Thesystem ignores any time remaining in the Total Timeout, and thecall does not ring again on any telephone in the group.■ For a Circular Hunt Group, the call rings in order on each grouptelephone and then, for the remainder of the Total Timeout, beginsringing again through the telephones, in order. Depending on theTotal Timeout value, an unanswered call might ring through alltelephones in the group multiple times.If the Total Timeout value exactly matches the sum of the Per-DeviceTimeouts, the behavior of a single incoming call is the same for bothlinear and circular hunt groups.When the system routes a second call to a linear or circular hunt group,the telephone on which the second call first rings is different:■ For a Linear Hunt Group, the new call rings on the first telephone inthe group.■ For a Circular Hunt Group, the new call rings on the telephone that isnext in the ringing sequence.Calling Groups In this special type of hunt group, an incoming call rings on all telephonesin the group simultaneously. After the Total Timeout value is reached, acall that is still unanswered is routed to the group’s call coverage point.The value in the Per Device Timeout field has no effect on the behavior oftelephones in a calling group.Call Coverage For each hunt group, you can define where the system routes anunanswered call (the call coverage point):
