Product manual

Installation instructions, Installation instructions BS370 Wireless Relay Station
Technical Product Manual - DCT1800-GAP
TD 92093 (1/LZBNB 103 108 R4D) / 2006-03-09/ Ver.C
© 2006
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18.3 Using the Site Survey Tool
A site survey of the BS370 can be done using the Site Survey Tool (SST), LTTNB 101 03. For more
information on using the Site Survey Tool, see the accompanying documentation.
18.4 Maximum number of simultaneous calls on BS370 and host base station
The BS370 can handle maximum 5 simultaneous calls. This is 3 calls less than a BS330, BS340 or
CORE
base station can handle simultaneously. Each call via a BS370 reduces the maximum number
of simultaneous calls on the host base station with 1.
Background information
The BS370 needs 2 speech channels to handle a call. One speech channel is required for the
connection with the cordless phone. Another speech channel is required for the link of the BS370 to
the host base station. The BS370 has 12 speech channels available. For internal handovers 2 speech
channels are reserved. Therefore, 10 speech channels are available for call handling. Because each
call requires 2 speech channels, the BS370 can handle 5 simultaneous calls.
When a BS370 connects to the host base station to set up a call, the host base station uses 1 speech
channel for this. Because the cable connection between host base station and system has maximum
8 speech channels, 7 speech channels are still available. So if a BS370 handles a call, the host base
station can handle 7 other calls at the same time.
Figure 47 illustrates the maximum number of simultaneous calls on host base station and BS370. The
host base station can handle 8 simultaneous calls in normal situations. If the BS370 handles its
maximum number of 5 simultaneous calls, the host base station can only handle 3 other calls
simultaneously.
Fig. 47 Maximum number of simultaneous calls on a BS370 and host base station
Host
base
station
BS370:
max. 5 calls
System
Max. 5 calls
Max. 3 calls if BS370
handles 5 calls
Max. 8 calls if BS370
has no calls
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Max. 8 calls