Installation, Administration and Maintenance
Aastra
depl-0900/0.4
Page: 12 (104)
2.3 OpenMobility
Manager
The OpenMobility Manager (OMM) performs the following tasks:
•
Signalling gateway (SIP <-> DECT).
•
Media stream management.
•
Managing
sync-over-air
functions between RFPs’.
•
Facilitating system configuration modifications.
•
Provides additional services e.g.
-
Corporate directory (LDAP based)
The OpenMobility Manager (OMM) runs on one of the RFPs’.
2.4
IP signalling and media stream
To establish a call between an IP Phone and a PP (Aastra DECT 142
Handset / Aastra 142d), the following IP streams must be established:
•
A signalling channel to and from the SIP phone.
•
A signalling channel to and from the OMM.
•
A control interface between the OMM and the RFP that has a connection
to the PP (known as the primary RFP).
•
A Real Time Protocol (RTP) / Real Time Control Protocol (RTCP)
connection between the SIP phone and the primary RFP.
The following figure illustrates this scenario.
To establish a call between two PPs’ the same IP streams must be
established like in the scenario before, except the IP phone is not involved.
The following figure illustrates this scenario.
