14169000-IG, Edition 11.0
January 2018, Original document
7
Terminology and Acronyms
The table below refers to common terms and acronyms that are related to the Spectralink IP-
DECT/DECT solutions.
Term Definition
Deployment The act of locating the mounting location and installing base
stations and repeaters. System performance is dependant
on the deployment made - and, therefore, the survey per-
formed.
Handover A process initiated by the handset in which the speech chan-
nel carrying an active conversation is passed from one base
station to another.
Erlang The erlang is a dimensionless unit that is used in telephony
as a measure of offered load or carried load on service-
providing elements such as telephone circuits or telephone
switching equipment.
LED Light Emitting Diode
LI-Ion Lithium-Ion
Ni-MH Nickel -Metal Hydride
Q Value Signal Quality Factor value. An expression of the bit failure
rate in the communication between the handset and a base
station. The value has a max. of 64, equal to no bit errors
measured.
LAN synchronization Method for synchronizing IP base stations over LAN
Synchronization Over the Air (OTA) Method for synchronizing IP base stations over Air (radio)
SUOTA Software Update Over The Air
RF Radio Frequency
RSSI Value Radio Signal Strength Indication value. A relative expres-
sion for the signal strength of a base station as measured
by the handset at a given location.
Site survey A site survey comprises the act of locating the best places
for base stations by measuring RSSI levels with DECT
handsets. Complete survey consists of measuring with mul-
tiple base stations, combining RSSI and Q value reading in
real surroundings.
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