multiple base stations & seamless roaming

[jan peeters]

Suppose you have multiple base stations in one building. A site survey has been carried out in order to determine the correct location for each base station. A person has an active voice call and walks through the building. He'sleaving the coverage zone of one base station & enter the coverage zone of the other one: does the call remain active or is the call broken during the process where the handset is registering itself with the other base station?