The S-PS requests Location Registration from SIP-CS(1).
SIP-CS(1) requests SIP Registration from the SIP server.
The S-PS moves from coverage area of SIP-CS(1) to the coverage area of SIP-CS(2).
The S-PS requests Location Registration from SIP-CS(2).
SIP-CS(2) requests SIP Registration from the SIP server.
SIP registration is executed each time the S-PS performs location registration while it is idle.
Moving while talking
SIP Server
S-PS
S-PS
SIP/RTP
Handover
Handover
S-PS
RTP
RTP
SIP-CS(1)
SIP-CS(2)
SIP-CS(3)
1
2
3
4
5
6
7
The S-PS requests Location Registration to SIP-CS(1), and then the S-PS starts the call.
The S-PS moves from the coverage area of SIP-CS(1) to the coverage area of SIP-CS(2).
The S-PS requests Location Registration to the SIP-CS(2).
RTP is transferred from SIP-CS(1) to SIP-CS(2).
The S-PS moves from the coverage area of SIP-CS(2) to the coverage area of SIP-CS(3).
The S-PS requests Location Registration to the SIP-CS(3).
RTP is transferred from SIP-CS(1) to SIP-CS(3).
SIP signalling and the media stream are sent between the SIP-CS currently in use and the SIP-CS that was
being used when the call started.
System Configuration
The Air Sync Master CS of Air Sync Group 1 is the most important SIP-CS. It is called the Super Master CS.
The Super Master CS has the following roles:
•
Portal for all settings.
•
Management of the synchronisation tree of all SIP-CSs.
•
Distribution of configuration data via Web user interface programming or configuration file programming.
•
Distribution of SIP-CS and S-PS firmware data to all SIP-CSs in the system.
•
Distribution of imported phonebook data to all SIP-CSs in the system.
Installation Guide
13
2 Overview
