Call Acquisition and Aisle Selection
Call acquisition and aisle alternative are the punch plan apparatus that ascertain area and how
calls should be baffled or interconnected. Alarm acquisition is usually abased on the called
number (that is, destination-based alarm acquisition is usually performed). This is actual similar
to IP routing, which additionally relies on destination-based routing. Multiple paths to the same
destination ability exist, abnormally in multisite environments—for example, a aisle using
an IP affiliation or a aisle application a PSTN connection. Aisle alternative helps you decide
which of the accessible paths should be used.
A articulation aperture ability be circuitous with alarm acquisition and aisle selection, depending on
the agreement acclimated and the design. For example, an H.323 aperture will at atomic avenue the
call amid the alarm leg that credibility to the alarm abettor and the alarm leg that credibility to the
PSTN.
When a Cisco IOS aperture performs alarm acquisition and aisle selection, the key components
used are punch peers. A Cisco Unified Communications Manager Express punch plan will
need a aerial cardinal of punch aeon if the deployment is complex.