Page 13 01/2007 AMT/PTD/PBX/0062/1/2EN
Calls between two PPs
To set up a call between two PPs, the same IP streams must be established beforehand.
RTP/RTCP streams are established directly between the RFPs managing the PPs, unless the
PPs are connected to the same RFP. In this case, no RTP packets are transmitted on the LAN by
the RFP.
The following figure illustrates this scenario:
OMM
(RFP in OMM mode)
Signalling
RFP control interface
RTP/RTCP
NeXspan iPBX
GSI gateway
Note: VoIP resources are required if an announcement is transmitted to the PP.
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