User Guide

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Reference information
If you are using a Phone Adapter, you must activate it on your mobile
phone by selecting Menu→ Tools→ Settings→ Accessory→ Accessory in
use→ TTY.
In addition to the Nokia 3620 or Nokia 3660 phone, you’ll need the
following for TTY/TDD communication:
• A TTY/TDD device that is “cellular ready” or “cellular compatible”
• A cable for connecting the TTY/TDD to your phone, usually supplied by
the manufacturer of the TTY/TDD device
• The Phone Adapter (HDA-9), which can be purchased separately as an
enhancement at www.nokia.com
For more information, see “Learn about accessibility solutions” on p. 5.
Battery
The 850 mAh, Li-Ion based BL-5C battery provides
power in a thin and light package. It provides a talk
time of up to 2–4 hours and up to 150–200 hours
standby time. Charging time is 1 hour and 35 minutes.
Variation in operation times will occur depending
on SIM card, network and usage settings, usage
style and environments. Talk time is reduced by
5 percent if Enhanced Full Rate is active, and
increased by up to 30 percent if Half Rate is active.
Chargers
The Nokia 3620 and Nokia 3660 use the
ACP-12U standard charger and mobile
chargers LCH-9 and LCH-12. The LCH-12
mobile charger can be used with 12 Vdc
or 24 Vdc. The Nokia 3620 and Nokia 3660
phones are also compatible with the
ACP-12U and ACP-8U travel chargers.
ACP-12U