Base stations in the Avaya Wireless DECT system need to be synchronized with each other. This can be done with a signal as low as -90dB between base stations.

One base station is assigned as the 'air sync master', typically the master base station. Each other base station can sync directly with it or indirectly via a synchronization chain. However, it is preferable that the number of synchronization 'hops' between any particular base station and its air sync master base station is kept as low as possible. To help achieve this it is recommended that the air sync master is placed centrally within the set of base stations.

Where possible, each base station should be placed within synchronization range of more than one base station, which allows the base stations to maintain synchronization should one base station fail or be switched off for maintenance. The process of synchronizing by the shortest route to the air sync master when in synchronization range of multiple base stations is automatic.