Unable to intercom another station. This has been an issue since the power went out for an extended period of time.

In this case, it is best to disconnect all room stations from the system. This can help determine if a room station is causing the issue or if it is a bad master unit. Once the room stations are disconnected, go back and try to set the clock, turn on radio, etc. If the problem is still happening, it is a defective master. If the problem has stopped, try adding back wiring while continuing to test the system.
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Try pressing the intercom button (base) above the number 1, on the handset the intercom button is below the # button.
Intercom?
Whenever the phone is in standby, you can make an intercom call
between stations without using the phone line.
?
You can make an intercom call from any station, but only two stations
can be in an intercom call at any time.
?
If an outside call comes in during an intercom page, the phone cancels
the page so you can answer the incoming call.
?f an outside call comes in during an intercom page, the phone cancels the page so you can answer the incoming call.
?
If an outside call comes in during an intercom call, press
speaker on the base or talk/flash on the handset to hang up the intercom call and
answer the outside call
see page 15/16 of the manual at the link below.

http://www.uniden.com/pdf/D1688-2om.pdf

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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To Page another phone to initiate intercom:-

From the base station - press Find hs/Intercom.
From a handset - Press Intercom/clear.

Then select the station you want to talk with or All to
page all stations at the same time.

To answer a page:-

From the base station - press Find hs /Intercom or Speaker.
From a handset - press Intercom/clear or Talk/Flash.

Hope this helps

Ive also included a link to the D1785 Series User's Guide








http://www.uniden.com/content/ebiz/uniden/resources/ownersmanuals/D1785om.pdf

A double-wink on the Intercom button indicates "Intercom Hold". Normally, lifting the handset and possibly pressing Intercom will take care of it. We had a phone for which that didn't work. In that case, use DSX System Administrator 3 to reset the station port. On the left side of the main window, click Reset Station Port under Utilities. Enter the extension number and click Start. It takes a few seconds and does not disturb other parts of the phone system. Hope this helps!

This unit has 2 transformers for power. It sounds like 1 of your trans. is dead. Check the voltage on each one.

Toshiba DKT2020 set work with a lot of different Toshiba systems. That being said this should get you in the right direction.

Date

• From receptionist station, without lifting the handset, press "Intercom"
• Dial "#651"
• Dial the time in YY:MM:DD format.
• Press "Redial" or "#".
• Press speaker.

Time

• From receptionist station, without lifting the handset, press "Intercom"
• Dial "#652"
• Dial the time in military format HH:MM:SS.
• Press "Redial" or "#".
• Press speaker.

Day of the Week

• From receptionist station, without lifting the handset, press "Intercom"
• Dial "#653"
• Dial the day of the week (1-7).
• Press "Redial" or "#".
• Press speaker.

Do you think they need to be replaced with new phones?

If you're trying to get 5 handsets to work with one base, it won't work. The 4215 can only handle 4 handsets, the base handset plus 3.

When I had to replace the base of my 4 handset system, the base handset still worked. Therefore I had an extra handset which couldn't be used. So I decided to buy another base. Now I have 6 handsets which can be grouped 4,2 or 3,3.

no non of sony cameras come with any life pan
ya they are telling something baout life cycle
but i have cybershot with 29000 pic and my friend is having about 20000 so if your cameras is in warrenty period then go to sony service station they will fix it
or if you r out of warranty period then go for repairing your camera probebly changing CCD of your camera will fix this problem