How can I use the intercom to talk to someone in another room?

You would have to install motion detector which would notify you. Intercom works only when someone press the talk button

• 1. In standby mode, press (intercom).
  • • Intercom is established immediately if there are only 2 registered handsets.
  • • If there are more than 2 registered handsets, the handset numbers which are available for intercom will be displayed.
• 2. Press the handset number you wish to call or press * to call all handsets.
• 3. Press (Talk) on a called handset to answer the internal call, where both internal callers can talk.
• 4. To end the intercom call, press (End/off) on either handset.

Here is a link for the manual.

NuTone NM200 4 Room Intercom Kit NM200 4 Room Intercom Kit
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Check power supply for proper voltage of 12 volts DC.
-If there are multiple Hubs, check voltage on all Hubs
If the voltage is not 12V, try replacing the power supply
226888 Power Supply
-If the voltage is ok, disconnect 1 room station at a time. If there a multiple Hubs, disconnect the last Hub. As each room station and/or door station is removed, have someone else listen to see if the squeal goes away. There is a chance that one bad room or door station is causing the issue.
oIf the squealing stops, add in the previous stations that had been disconnected. If all stations other than that room station are ok, do not hook up that station. There are no replacement stations available for this system. If the squealing continues with any of the stations hooked up, there is a bad HUB. DMC-10 Hubs are NLA and cannot be repaired. The best option for a replacement is the I2000 Kit
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Hi
To delete messages you need to first listen to them all on your machine via the BASE, then after all the messages have been played (which can be very boring) press and hold the DEL button. It will then ask you to confirm deletion by pressing OK. Not too sure about the conference call as mine does not have it. If however someone else in the same room wants to listen to the caller you can press the handsfree button (speaker icon) on BASE. If you want to speak to someone within your household in another room, you need to press OK on HANDSET, then press down to INTERCOM, press OK again and it will give you several options, INTERCOM ALL (where all available handsets can talk to each other), or HANDSET 1 or 2 to select a specific one. Hope I have helped and it does not sound too gibberish!
Regards

Providing that the handsfree answerback is turned on on the set your calling,you can use Voice call (feature 66) and the intercom of the person your calling.

I'm having the same problem. I think LIST means it is in LISTen mode, listening to the outside door station. Why it is doing that is unclear.

Yes, It's pretty expensive, I would talk with someone at a dealer who really know exactly whats involved. you may be better served by using Cardo's Scalia Teamset. I'd just go for the FLHTCU personally, 4 speakers, cb, intercom, fairing lowers, better resale.

To program a page button for other extensions.
At the phone, press Feature 00
press the LIGHTED button you want to program.
press the LEFT intercom button, followed by * (star) and the 2 digit extension number.
Repeat for more buttons.
Feature 00 when done.

Now you can just press the button, and it dials intercom *10 (example)

it will activate the speakerphone and you can talk.

For models with 2 or more
handsets included
Making an intercom call
1 Press {INTERCOM}
2 To page the base unit, press {0}.
To page another handset, enter its
extension number ({1} – {4}).
The destination unit beeps for up to 1
minute. Someone else can answer the other unit and talk to you.
3 To end the intercom call, press {OFF}.