3.After the selected number of hours, the phone automatically exits silent mode. To exit silent mode manually, press and hold # again.
##If the phone is in silent mode and you turn off the answering system, the phone exits silent mode.
Multihandset Features
##To use the features in this section, you need at least 2 handsets.
•Your base supports a total of 12 cordless handsets: the one that came with the base and up to 11 DCX170 accessory handsets. Your base also supports a total of 2 DRX100 range extenders, including any that came with your phone. If you have any DWX handsets, the D1780 is limited to a total of 6 accessory handsets
•You must register accessory handsets to the base before using them. (Handsets that came packaged with the base are already registered.)
•Handsets that aren’t registered display a Not Registered message. For registration instructions, see p. 18, or see the accessory handset manual.
•If a handset was ever registered to a base, you must reset it before it can register to a new base; see p. 18, or see the accessory handset manual.
Conference Calling
•When an outside call comes in, two handsets can join in a conference call with the outside caller.
•To join a call that’s already in progress, just press Talk/flash or Speaker.
•To leave the conference call, hang up normally; the other handset remains connected to the call.
Call Transfer
To... | Press... | |
| Intercom/clear. The phone puts the call on hold and | |
transfer a call | prompts you to select the handset you want to page. | |
When the other handset accepts the call, you'll be | ||
| ||
| disconnected (press Talk/flash to rejoin the call). | |
cancel a transfer | Talk/flash to return to the call. | |
accept a | Intercom/clear to answer the page and speak to the other | |
transferred call | handset. Then, press Talk/flash to speak to the caller. |
Privacy Mode
To activate privacy mode on a call in progress, press Menu/select twice. As long as privacy mode is on, you'll see a 
in the display, and no other
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