Aastra OpenCom 100 series, Руководство по монтажу и пусконаладке

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DECT over IP
®
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Synchronisation
Transmissions of all DECT base stations at a single location must be synchronised in
order that DECT terminals are able to receive multiple DECT base stations simultane-
ously. Synchronisation can be conducted via U
pn
access. It cannot be conducted via
an Ethernet/IP connection. DECT over IP base stations are thus synchronised via
wireless connection.
When planning a larger sized DECT network, it is advisable to take the following
points into consideration:
• All DECT over IP base stations at a single location must be able to receive at least
one, or even better, two neighbouring base stations. Synchronisation requires less
signal strength than a voice connection does.
• Synchronisation range is increased using multiple base stations. To decrease the
probability of a connection breakdown, base stations should not be arranged in
chain formation. The signal should be distributed with a network that is as
extensive as possible and where each base station is supported by multiple syn-
chronisation partners.
• To re-synchronise, first wait for all current connections to be terminated.
You can operate a DECT network consisting of several remote locations (“clusters”). A
cluster is a number of DECT base stations that operate synchronously with each other.
No handover is possible between DECT base stations from different clusters. You
should configure a second cluster for DECT base stations of a second location.
Setting up the WLAN Function
The RFP 42/43 DECT over IP base station provides the additional function of a Wireless
LAN Access Point (WLAN-AP). WLAN refers to data transfer by means of radio waves in
accordance with the IEEE 802.11b/g standard. This standard enables a wireless con-
nection to be made to an Ethernet network (LAN) using suitably equipped user ter-
minals. Data transfer via radio waves is very fast. Depending on the conditions of the
operating environment, it can reach speeds of up to 54Mbit/s (gross).
WLAN settings are configured centrally for all Access Points using a separate Web con-
figurator, which can be found at the IP address of the DECT over IP Manager (OMM,
OpenMobility Manager). You can reach this address by entering the IP address of the
DECT over IP Manager directly into the address bar of your Web Browser. Alternatively,
you can also go to the
Configurator , to the page Telephony: Devices: DECT over IP
and click on the WLAN Config. button. Log in under the User Name “Administrator”
and enter the same password as for the OpenCom 100.