One day woke up to find phone was just not picking up the signal. Base unit plugged in and power coming through to power the red light on base, but when you press the call button on the handset it beeps, as if to say there's no signal. No dial tone or anything. Fully recharged, seems to still charge ok. Right next to base unit, so not out of range. Tried resetting it as tech help suggested, by taking out batteries, cables etc and waiting 30mins. Any ideas?
The following worked when I had what appears to be the same problem. Solution :- Remove batteries, remove power connection, wait 30 minutes, re-connect power and replace batteries then press button on base until it beeps. Both handsets started continuous beeping which eventually stopped and everything was returned to normal. Admittdly this sounds almost identical to the process used by 'versailles' above, but at least it confirms that the technical info given by the BT Helpline does work
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check power plug at base is plugged in and turned on at power point ( this has happened twice in last two days on my phone base power pack - by others unplugging it)
Check line cord at base unit is plugged in too
base phone not working suggests no power on base and phones battery has gone flat .
Its probably the cleaning light that comes on periodically to remind you to clean the unit. Shut off the unit AND when you do so hold down the power button for several seconds until the flashing red light shuts off. The cleaning light should stay off until the next cleaning is due.
Per the Air-O-Swiss FAQ:
Q: Cleaning light is flashing (AOS U650, AOS 7135, AOS 7142, AOS 7144, AOS 7147)
A: Switch the unit OFF and unplug it. Empty the water in the base. Rinse the base with hot/clean water. Do not submerge the base! Visually inspect the base for dirt or mineral build up. If soft water is used decalcifying the unit every 4 weeks with EZ Cal is suggested. If hard water is used the unit should be decalcified every 2 weeks. Do not forget to reset the clean light after resetting the unit.
Q: Reset cleaning light (AOS U650, AOS 7135, AOS 7142, AOS 7144, AOS 7147)
A: The cleaning light does not automatically reset. Hold down the power button (button A in instruction manual) until the light stops flashing. The light automatically comes on approximately 14 days after plugging in the unit.
read the user manual as the handsets have to be registered by the base unit to be connected
the main base is the operational unit
the other bases are just cradles to hold the phone while it is being charged
This can be due to poor meshing of the base and handset , a poor signal strength that tends to pick up stray EMI signals. Make sure that the antennae of the Base phone is tight and up . Check the voltage to the base phone - if adapter is faulty.
Also check the handset for any loose fittings on the antennae.
If the problem does not resolve then you need technical help to check if the operating frequency or the signal processing is weak and faulty on the base unit. Best you can remove base unit and look for any loose links in RF section or shielding faults in this section that picks up stray signals.
It is searching for a signal because its signal is so weak it cannot find the base. If it cannot communicate with the base, there is no conversation.
New or not ... your battery is either faulty, prematurely dead or not charging. I am leaning toward not charging ... do you have it plugged into a hot outlet (not switch controlled)? Can you measure the power coming OUT of the transformer? Is there a charging light on the base unit that would indicate a charging condition?
The compatibility setting, in almost 100% of the cases, should be set to "1". You can find it on the side of the base, it's a little turn wheel that will turn if you stick your thumbnail in it and twist. I have seen one instance on the Cisco IP phones that requires the compatibility setting to be on 5, so try that as well.
If you have a lifter installed, make sure that the short telephone cable that comes out of the back of the headset's base unit is plugged into the handset port of the telephone (where the handset coily cord is normally plugged into). You would then plug the handset coily cord into the front of the headset base unit. Make sure you have that configuration, and try again.
Finally you can try a re-set. To do this you should lift the headset off of the charging base, make sure the green light on the top of the base is off (the headset is off), and then do the following:
1. Hold down the mute button and the call answer button at the same time. (The mute button is the black little wheel on the top of the headset itself. If you use the tip of your finger to push that straight in, it will mute the headset)
2. Keep holding both buttons down until the green light below your thumb on the headset flashes for 2 consecutive series.
3. Let go. Wait about 20 seconds then try answering.
If this doesn't work, try a re-subscription:
1. Place the headset back on the charging base.
2. The two microphone volume adjust buttons on the back of the BASE unit should be pressed together. This will start the red light and the yellow light blinking on the front of the base unit.
3. Hold the mute button down while the headset is still on the charging base. Hold it down until the red light stops blinking.
4. Disconnect the power to the base so that the red light and yellow light turns off.
5. Plug the power back in after about 5 seconds of it being disconnected and make sure the red light on the front of the charging base is now solid and the yellow light is flashing.
6. Pick up the headset and try again.
It is not possible to set up 2 base units to work with same handset as the base unit and the handset are tagged by their operating frequency, which also works as the privacy filter for the user, so that your neighbors cannot pick up your line and use on your expense. For your requirement you need a DECT system that can support multiple base stations.
Most likely, the extension unit cannot communicate with the
indicator light is solid base unit for one of the following reasons:
red • Base unit has yet to be installed. Install base unit. (Refer to
the Set Up section.)
• Extension is too far from the base unit. Relocate either the
base or extension unit to another electrical outlet. If
indicator light on extension
unit remains solid red, reprogram the link code on extension
Follow these steps:
• Press and hold the button on the right side of the base
unit until the indicator light changes to solid red.
(Approximately five seconds.)
• Release the button, then the indicator light will blink orange.
This creates a new link code and places the base unit into
• Follow steps (2) and (3) in the Additional Extension Units
section for all extension units.
• Press and release the button on the base unit to take it out of
program mode. The indicator light will change from flashing
orange to solid green.
With these units, if the earpiece battery is allowed to run down, it will switch off. When the earpiece turns off the base station starts to search for it, which is indicated by the flashing red power light. Also the blue light on the top of the base will turn off. The first step, which you have already done, is to charge the earpiece. Next, hold down the little black button that is on top of the earpiece for about 5 seconds. You should get a slow flashing blue light on the mic boom. Wait for about 10-20 seconds and the base should automatically find the earpiece. The red power light on the base will be steady and the blue light on top of the base will come on.
You need to register the unit it will work:
1. Make sure the Base Unit is switched on and has a Green light showing.
2. Unplug everything connected to the Base Unit sockets (you will reconnect them later).
3. Plug the Extension Unit into a power point near the Base Unit, switch on the power and watch the light on the Extension Unit.
4. If the light on the Extension Unit is not glowing a steady Red then the Extension Unit must first be deregistered. Follow Step A and Step B in
the Deregistering an Extension Unit box below then try to register the Extension Unit again.
5. Plug one end of a supplied line cord into to either socket on the Base Unit and plug the other end into the extra Extension Unit
(This cord is used to do the actual registering).
6. The light on the Extension Unit will glow Red for up to a minute and then change to Green or Yellow.
7. Once you have the Green or Yellow light on the Extension Unit, unplug the line cord between the Base Unit and the Extension Unit
(You can unplug the Extension Unit – it will remember being registered).
8. Plug in everything that used to be connected to the Base Unit sockets.
9. Install the extra Extension Unit as per the Extension Unit Installation steps on the other side of this page.