How can I test if my phone line is working?
Test ok unplug the phone that you're having problems with and try and love a phone in the same
Plug a working phone (not cordless) into the main phone socket (this is usually where the phone line enters your premises). See if you can make calls from it. If you can make calls, the fault is likely to be with one of your pieces of equipment. Plug in your pieces of equipment one by one.
Text PHONE to 61998 (charges may apply at your standard rate). We'll run tests on your connection to find out what's going on. If you need an engineer, we'll text you in 15 minutes to book a slot.
Can I report or check a line fault on another person's BT line? Yes you can but we recommend the person reporting the fault to be at the premises where the faulty line is allocated.
Try dialling 150 from the flat, it would be the only number you dial. The call would go through to the customer services department of who the line was with last.
You can test a phone line without a phone by using a multimeter. To do this, you need to make sure that you need to disconnect all the connections that are currently connected to the telephone jack that is present in your home. You then need to open the telephone lines to test whether the phone line is working.
- Plug an analogue phone into the main BT test socket.
- Dial the test number 17070, Choose option 2 from the menu "Quiet Line Test"
- If your telephone has the option, put it on mute. ...
- If you hear any line noise, crackling, buzzing, popping or humming note the time you conducted the test.
0800 800 150, free of charge, 24 hours a day.
On keying in a number, you get to see a red busy icon beside the same. Therefore, it is an easy way to know someone is busy on call without you calling that number at all.
- First, unplug all phones and any equipment from your telephone sockets - make sure nothing is left plugged in. ...
- Now, plug a working phone (not cordless) into the main phone socket (it's usually where the phone line enters your premises) and try making a call from it.
How do I check my Talktalk phone line?
Check for crossed line issues
Simply dial 1 7 0 7 0 from your landline to relay the number you're still connected to and fix the problem.
By simply plugging in a phone and calling 150 you can find out who your current line is with, which can help you get reconnected faster and often for a cheaper price too. At the moment, unfortunately there's no online service which automatically checks which provider your landline phone is connected to.

The "check line cord" is the standard message that cordless phones display when they are not detecting a dial tone. As Keith suggests try a corded phone into the test point of your main socket. If you do not get a dialling tone you will need to report the issue to your comms provider.
If you're still having problems after exhausting all our troubleshooting advice, please contact our fault team on 0870 087 8777*. Select 3 for technical questions, set up and faults and then select option 1 for landline faults or option 2 for broadband faults.
- Plug a Standard Analogue phone into the test socket - you should get a Dial Tone.
- To check the Telephone Number Dial 17070 - you will hear a message giving you the telephone number associated with the line.
- Quiet Line Test - This lets you hear if there is Noise or crackling on the line.
You can test a phone line without a phone by using a multimeter. To do this, you need to make sure that you need to disconnect all the connections that are currently connected to the telephone jack that is present in your home. You then need to open the telephone lines to test whether the phone line is working.