How could a the speaker on a corded phone turn on by itself?

There may be a small breaker button on the tanning bed itself that is near the power cord or power switch. To reset, push this button down. If it loses power again, there is an electrical problem wit the bed that should be serviced.

Look around on the base (where you set the phone when not in use) look for a volume or mute button, maybe youve accidentally muted it or turned down the volume, also look on the phone itself, for the same buttons, if neither of these things work, its possible the wiring on the inside of the phone is faulty, could also be a faulty speaker/ringer. If this is the case, i suggest buy a new phone

Here are a couple of options, 1) go to a wirless headset so you can hear the phone even if your not at the phone. I'm not sure how old this phone/station is but if it doesn't have a headset button option, you can get a cradle that picks up the phone when you push a button on the headset. 2) You can contact your phone system tech (whoever sold you the Norstar) and ask they install an external horn/ringer. This is very common in warehouses and manuafactor floors, etc.

We have the 25414RE, so I can tell you how ours works and hope it helps solve your problem...

You first have to assign each phone a "number". Push the menu button, and go to phone options (you scroll by pushing the review button to the left or right), choose set phone id (once you are on that option push the select/save button just above the review button) - I started with the first phone I plugged in and made it number one, and so on (we have a total of 5). Once the phone ids are established, simply push the intercom button and the corresponding number on the right speed dial/intercom numbers - it should dial the phone you want. It also has an option (again we have the 25414RE) to have the phone auto answer the intercom - so if you are paging someone in a room that isn't near the phone, or the phone is shared by several users, it picks up without anyone having to push anything. Otherwise, the phone that you are calling has to either have the handset picked up or the speaker button pushed. Hope that helps you!!

You can try pressing the feature key and then dialing 26. This is used to set background music on the extension when the phone is at rest. It also turns it off. This is on the dtu16 phones. Here is a link that has most of the user manuals for NEC phones. you should be able to find your manual here. http://www.neccare.com/cng/docs.nsf/Lib3?OpenView&Start=1&Count=100&Expand=6.13#6.13

check for a button or sliding switch on the side,top,or bottom for the ringer on/off, [ some phones even have this switch on the back ] as for the speakerphone, you may have to push the speakerphone button, then put the handset back on the cradle for the speakerphone to work.
hope this helps.
wg

re:reset On the side of the cabinet near the power switch is a reset button and a SET CLEAR switch. Turn off the system, put the switch in CLEAR and push the reset button with a pointed tool. When the red light flashes and within 10 seconds, put the switch to SET.

I'm hoping you have a programming manual even though you must not have an installation manual.

Carl

if you sent 110v down the speaker wires & into the amp you most likely have damaged the audio outputs or the output ic. Look for a big aluminum heatsing & on one side you may find 1 or 2 ic's or numerous transistors, the ic's are hard to check, the transistors are easier to check, if transistors replace in pairs. also check for burnt /open resistors near outputs