Aastra DT390 User Manual page 17

2.6.3 Frequency Range
The handset is a radio transmitter and receiver. When it is on, it receives
and sends out radio frequency (RF) energy. The handset operates on
different frequency ranges depending on market and employs commonly used
modulation techniques:
•
•
•
1424-EN/LZT 103 087 Uen A3 2008-11-21
EU 1880 - 1900 MHz
U.S. 1920 - 1930 MHz
L.A. 1910 - 1930 MHz
Important User Information
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