Mitel SIP-DECT Multi-Cell for MiVoice Connect Planning and Installation Guide
15
o If a preferred DECT base station was determined in stage 0, this one
becomes the synchronization source for the subsequent DECT base stations.
Otherwise the first DECT base station that sends a startup message
becomes the synchronization source for the subsequent DECT base stations.
o In this stage, only DECT base stations reporting an RSSI value better than
65 dBm are permitted to perform synchronization.
o If a DECT base station has completede its synchronization, this DECT base
station will be also a synchronization source for other upcoming DECT base
stations.
o The initial timeout for this stage is 30 seconds. Whenever a DECT base
station has finished its synchronization in this stage a new stage timeout
value is calculated.
o If no DECT base station comes up within the timeout time or if all the
upcoming DECT base stations do not fit the RSSI threshold, this stage will be
terminated and the next stage begins.
• Synchronization stage 2
o The behavior of this stage is identical to stage 1, but an RSSI threshold value
of 70 dBm is significant.
• Synchronization stage 3
o The behavior of this stage is identical to stage 1, but an RSSI threshold value
of 75 dBm is significant.
• Synchronization finished
o No more RSSI threshold value is significant. All DECT base stations that
failed the stage conditions above are now permitted to perform
synchronization.
The last level “synchronization finished” will be achieved either all registered DECT
base stations of this cluster are synchronized or the timer of stage 3 expires.
GATHERING SITE REQUIREMENTS AND INFORMATION
Make a preliminary visit to the site to gather information described in this section.
OBTAIN A FLOOR PLAN
Obtain a floor plan with a distance scale and note the following items on the drawing:
• Metal walls or concrete walls greater than 1M thick
• Screen rooms
• Large metal objects, such as cabinets and machines
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