When I push the speaker button, I get a dial tone but when the person answers he/she can't hear me. This feature always worked in the past but suddenly, I have this problem

Most likely that it is the speaker on the handheld part of the phone. Your sound comes from the base itself when you put your current connection on Speaker-Call. So if you cannot hear the dial tone OR the person on the other end unless on "speaker" it's just the handheld and I believe there are places online you can purchase JUST that part if needed.

familirize with devices user manual whether has feature functions requested. Second, ascertain that device was least malfunctioning since acquired. normally, familirising with innovative devices makes expertise in functionality.

After you call the first person press the shift button or green phone button on your phone. You will hear a dial tone to dial the other persons number.After you dial the number press the shift or green phone button again to bring you back to the first person you called. You should still hear the phone dialing the other person and when they answer you will have a 3 way call.

There is a speaker test you can do. Press the feature button then on the dial pad press 805 followed by the # key or the next key until you see speaker test in the display. Press the test key or the hold button to start the test. You should hear a page tone at maximum volume. Press any button to end the test, the volume will return to its previous level.

The phone is mute by pressing the handsfree/mute button(bottom left button). sometimes the button labels do not match the feature that is programmed for the button. Press feature * 0 and any button to see what feature is programmed on the button.

The switch that the handpiece activates is not working. Could be optical, magnetic or physical. It may need cleaning, adjusting or a wire connection repaired. Also check the curly cord and its connections between the handpiece and telephone.

You can reset all settings to factory simply removing the phone battery.
if that does not solve the problem, then the phone is faulty, with bad wiring to speaker or board problem.
Try if the handsfree loudspeaker works, if it does , then it is wiring to handset speaker. If it does not , then it is a faulty audio circuit on board.

If you have a flash button, you would use that to place the first call on hold and dial or answer a second call. If this is a single line phone in your home, you would have to have "Three Way Calling" feature with your local phone company. If you do, you could ask them what the dialable feature code is. It's possible they allow you to use your flash button, get dial tone and dial another person, when they answer, flash again to conference. If you don't have a flash button, they you would be using your Green or Off Hook button that you use to get your dial tone.

You have the headset feature active on your phone. You more than likely dialed the headset code inadvertently, there are two ways to turn this feature off. 1) If you have a headset key programed on a key on your phone turn it off. 2) Dial the headset off code, you can obtain this from your local admin.
Sorry I didn't have quick fix for you.

Any standard phone should work, even phones made in 1800's should still work on a standard phone line.

I'm not sure what phone you have. The one listed in the question "M7310" is a business system phone and will ONLY work on the Nortel business phone system.

If you have standard home phones, my only suggestion (using the information supplied) is to check if the Tone/Pulse switch is set to tone... even though both should work.

Do you have phone service through a cable line?

Before you begin


To pinpoint the cause of the issue, please record answers to the following questions:

Can a fax be sent or received?
Can a fax be sent, but not received?
Has the fax function ever worked in the past?

Any error messages may also help to narrow down the cause of the issues.

Print out the following:

- a settings list to view the current fax settings
- a receive log if there are issues receiving faxes
- a send log if there are issues sending faxes
- an activity log if faxes cannot be sent or received.
Initial checks
If the fax option has worked in the past and does not do so now, check that the same connection is being used and that it still works.
Check to see if any configuration settings have been changed that could have affected the fax settings.

Faxes cannot be sent/received:
If you are using a digital line, you need an analog card, an ISDN adapter, or an ADSL filter in order to send faxes.
If a PBX is being used, an ISDN Adapter/ADSL filter will not be used as these are supplied within the system. (A PBX is normally used within a company to share a small number of public lines among a large number of private ones to save on cost.) For instructions on configuring the X6100 Series machine with a PBX, see How and When to Use the PBX Option.
Check the phone line (without the printer):
Test the line by connecting a phone directly into the phone port.
Check for a dialing tone.
If you cannot hear a dialing tone, try another phone cable. Once you can hear a dialing tone, you know that the phone port is live and working.
Make sure the RJ11 cable is not damaged.
Check that the printer is accessing the dialing tone correctly:
Press the Options button on the operator panel five times until ON HOOK DIAL is displayed.
Press Select. You should hear a dialing tone.
If you can't hear a dial tone, make sure that the speaker volume is set to High. (Go to Fax, press Options eight times until SPEAKER VOLUME is displayed, then use the plus or minus buttons to change the setting to HIGH. Press Select.)
If there is still no dial tone, unplug the power cable and the phone lead, then plug them back in and try again.

Faxes can be sent but not received:
Connect the Lexmark All-in-One directly to the phone port. IMPORTANT: Do NOT connect any phones to the EXT port.
Make sure the Fax receive mode is set to answer the fax after 3 rings. (Press the Fax button on the operator panel and then press Options three times until ANSWER FAX WHEN is displayed. Change the settings using the - or + buttons as appropriate.)

Faxes can be received but not sent:
Make sure that Country Code is set correctly:
Press the Fax button on the operator panel and then press Options 15 times until Advanced is displayed.
Press Select.
Press Options 13 times and then press the + or - button until the right country is displayed.
Press Select.

IMPORTANT! These tests must be carried out with NO EXTENSIONS, i.e. phones or answering machines, connected to the EXT port on the All-In-One.