AASTRA SIP-DECT (Release 3.0)- OM System Manual - Installation, Administration and Maintenance EN - Manual (Page 160)

SIP–DECT OM System Manual Release 3.0 9 Configuration und Administration Aspects
Aastra depl-1624/1.0 Page: 160 (241)
can check the RFP synchronization using the Sync view menu of the OM Management
Portal (OMP), see chapter 8.7.5.
9.3 RFP Channel Capacity
On air the RFP has 12 available time slots, 8 can have associated DSP/media resources for
media streams. All DECT time slots are used for control signaling, SW download over air,
messaging and bearer handover independent of associated DSP/media resources.
If all 8 media stream channels are used the RFP announces a “busy bit”. In that case the
PPs determine whether another RFP has an appropriate signal strength. If so, the PP will
handover to that RFP. Once the handover has been completed, the RFP will then lower its
“busy bit”.
Whenever the busy state is announced a log entry is made to the system logs. If the
announcement of busy raises in a specific area, a further RFP should be installed to double
the number of media streams available for calls.
Notes on Hi-Q connections
Each Hi-Q connection uses, compared to conventional narrowband, the double capacity on
the DECT air interface. Due to this fact, four Hi-Q connections (instead of eight) can be
established via one RFP.
It is not possible to have DECT XQ audio combined with Hi-Q audio within the same
connection.
9.4 Network Infrastructure Prerequisites
To establish and maintain an SIP–DECT installation, a network infrastructure is assumed,
which comprises at least the following components:
•
RFPs
•
PPs
•
IP PBX/media server (e.g. Asterisk)
•
TFTP server
Depending on the operational modes the following services should be provided:
•
DHCP
•
TFTP
•
SNTP
•
DNS
•
LDAP
•
Syslog daemon
Notes on network infrastructure prerequisites
•
In NA outdoor RFPs may only be installed with the antennas shipped with the units. No
other antennas or cabling are permitted. In EMEA the outdoor RFPs are shipped without
antennas and you may use the units with one of the optional antennas (separate order
no.).