Installation guide

Trunk group hunt types 27-7
Chapter 27: Understanding Wave Trunks
Wave Global Administrator Guide
Trunk group hunt types
When users make outbound calls on Wave, the hunt type of the associated trunk group
determines how an available analog trunk or digital channel is located. Trunk groups can hunt
in either a linear or a circular fashion and either of those hunt types can be used in forward or
reverse order.
•
Linear. Looks for a free channel, always starting at the beginning of the list of trunk
groups and searching to the end, or—for reverse-order hunting—always starting at the
end of the list and searching to the beginning. Each channel is tried once.
•
Circular. Looks for a free channel, starting where the last search left off. From this point
(where the last search left off), forward-order hunting works forward through the list of
available channels, and reverse-order hunting works backward through the list. Each
channel is tried once.
When you configure trunk groups, you will set the hunt type for each. For trunk group
configuration procedures, see “About creating new trunk groups” on page 5-2.
Minimizing Glare
Glare occurs when an incoming call and an outgoing call select the same channel
simultaneously. For example, GlareGLobalAdministrator occurs when Wave receives a call
from the network on a channel it has just selected to initiate an outbound call. In this case, Wave
allows the inbound call to use that channel and retries the outbound call on a different channel.
Reverse-order hunting helps reduce collisions with the central office’s incall hunt group. The
central office will typically use incall hunt groups that are linear and start with the lowest trunk
or channel.
To minimize Glare:
1 Determine the central office (network side of the connection) hunt order.
2 Configure Wave (user side of the connection) for the opposite hunt order.
For example, if the central office is configured for linear hunting, configure Wave for
reverse linear hunting.
Note: When connecting two Wave Servers together using ISDN, set the network side of the
connection to the linear hunt type and the user side to the reverse linear hunt type.
Release 2.0
September 2010