C
ORDLESS
P
HONE
8
6/1531-ANF 901 14 Uen F1 2013-11-29
3.2
Upgrading of existing base stations
3.2.1
BS3x0 and BS3x2
The software for the base stations can be ordered from the supplier of
MX-ONE system. It is to be stored on a Telephony Server and loaded to
the base stations.
The base stations are upgraded by using the
board_sw
command, see
the command descriptions for
BOARD CONFIGURATION
. The ELU31
have a function which checks for the correct firmware during the start of
downloading it to the base station. Since there are a number of different
types of RFPs that can be attached to the ELU31, at the board start
phase the boards ask for the product number and compare it with the
product number received in the software file. If they do not match no soft-
ware is downloaded to the RFP.
3.3 General
preparations
Installation planning shall be completed (see the installation planning for
CORDLESS PHONE
), but pay special attention to the considerations
described below:
•
Do a coverage calculation for the DECT RFPs for specific areas
within the building.
•
Make sure that the power equipment in the Media Gateway is able
to feed the number of base stations in the configuration.
3.4 Synchronization
3.4.1 MX-ONE
synchronization
When MX-ONE classic or MX-ONE media gateway classic are
connected to PSTN network interface, normally a primary rate interface
(2048 kbit/s for E1 or 1544 kbit/s for T1), the PSTN network is an
external timing source. This external timing source must be equal to or
better than timing accuracy and stability required for Stratum 3 timing
(note 1).
This system clock synchronization is more crucial when Integrated
DECT is deployed in the MX-ONE system and more careful synchroni-
zation and timing planning must be considered.
