Question about Doro DECT 540 Cordless Phone
This is because the extra handset might have not been registered with the base unit.The headset should be register to use the headset with that base unit.
To register the handset to base unit please follow the instruction:-
On registration the handset is allocated a handset number for use on the new base unit, the handset numbers are 1-5.
1. Press and hold
on the base unit until starts flashing. Registration mode will remain active for approximately 3 minutes.
2.Press and hold both together until you hear a long beep.
3.Select the base unit you wish to register by pressing the corresponding number button 1-4.
4. When PIN is displayed, enter the units PIN number (0000 for this model).
5. If the registration is successful the handset will return to standby mode in a few seconds.
Posted on Jul 22, 2010
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Posted on Jan 02, 2017
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