Nortel Networks SONAR P0992639 01 User Manual

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Registering individual portables / 
89
P0992639 01
Modular ICS Companion Installer Guide
4. Press 
s, then press 0. The display shows 
Deregister?.
5. Press 
s, then press 0 again. The display shows 
Deregistering... and then Deregistered.
6. To continue using the portable, press 
r.
Measuring RSSI for a C3020 (Canada only)
The Receive Signal Strength Indicator (RSSI) is a 
measurement of the signal strength the base station receives 
from the portable. 
The base station controls the power transmitting mode of the 
portable. 
When the base station receives a weak signal, it instructs 
the portable to transmit in high-power. 
When the base station receives a strong signal, it instructs 
the portable to transmit in low-power. 
The strongest RSSI value the portable displays is -44 dBm. 
The weakest RSSI value the portable displays is 
approximately -85 to -95 dBm.
Receive Signal Strength Indicator overrides 
normal display.
You cannot receive calls while measuring 
Receive Signal Strength Indicator.