For Backward Compatible Base Models - ELT560 and the TRU8 Series [TRU8860/TRU8865/TRU8880/TRU8885/TRU8888]
1 Disconnect the AC adapter from the main base.
2 While pressing down on the following key, reconnect the AC adaptor.
TRU8860/8865 models - find handset key TRU8880 models - find hs/intercom key TRU8885 models - flash/find hs key
Keep pressing the key until the CHARGE LED starts to blink.
For ELT560
1Remove the battery compartment cover from the back of the main base.
2Press and hold the Registration button in the battery compartment.
3Keep pressing the Registration button until the handset charge LED on main base starts to blink.
For TRU8888 (corded base model)
Registration button
1With the main base in standby mode (i.e. not being used), press the MENU soft key on the base.
2Use the up/down key to select HS Registration, and then press the OK soft key.
3Use the up/down key to select Register Handset.
4Base LCD screen will display the following prompt:
On handset press & hold "#" key for 2 sec
3 On the handset, press and hold the # key until you hear a beep.
For Main Base Models ELBT585, ELBT595
1 With the main base in standby mode (i.e. not being used), press menu/select.
2 Use the up/down key to select System Setup.
3 Use the up/down key to select Register Handset.
4 The base LCD screen will display the following prompt: On handset, press & hold "#" key for 2 sec
5 On the handset, press and hold the # key until you hear a beep.
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