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3.4
OPENMOBILITY MANAGER
The OpenMobility Manager (OMM) performs the following tasks:
♦
Sending signals to the GSI gateway (IP Stimuli <-> DECT GAP)
♦
IP flow management
♦
Managing sync-over-air functions between RFPs
♦
System management and configuration interface
OpenMobility Manager (OMM) may run on one of the RFPs or on a dedicated Linux server.
3.5 IP SIGNALLING
Calls between an IP phone and a PP (portable DECT)
To establish a call between an IP Phone and a PP, the following IP streams must be established
for the signalling path:
♦
A signalling channel between the IP phone and the iPBX
♦
A signalling channel between the iPBX (GSI gateway) and the equipment hosting the
OMM
♦
A control interface between the OMM and the RFP that has a connection to the PP
♦
A DECT radio signalling channel between the RFP and the PP.
To establish a call between an IP Phone and a PP, the following IP streams must be established
for the voice path:
♦
A Real Time Protocol (RTP) / Real Time Control Protocol (RTCP) connection between
the IP phone and the primary RFP (RFP associated with the PP).
The following figure illustrates this scenario:
IP phone
OMM
(RFP in OMM mode)
Page 12
NeXspan iPBX
GSI gateway
Primary
RFP
Signalling
RFP control interface
RTP/RTCP
01/2007
AMT/PTD/PBX/0062/1/2EN
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