- Hearing any of the following while making a call: buzzing, crackling, static, screeching, or popping.
- You may hear line noise when lifting the phone handset, even if not on a call.
- While on a call, voices may be distorted or intermittently drop in volume.
Things to check first
Poor signal or issue with the other caller’s phone service
- If you only hear the line noise when you call a specific number, it may be the other phone service that has an issue. You can check this by making some test calls to different phone numbers.
Central splitter required
- If more than three telephony devices or a Back to Base Alarm system, may need to contact an ACMA-approved electrician to install a central splitter.
- Unplug all devices from every phone socket, including your modem, telephones, fax machines, pay TV boxes and EFTPOS terminals.
- Plug a standard phone handset directly into the phone socket (without a filter), and then make a call, listening for line noise. If you are able to make a call without line noise, see the advice below.
- If more than one phone socket in home, plug handset (without a filter) into each of those sockets and make a call, listening for line noise. If you hear line noise when phone is plugged into one socket but not another, there may be a problem with home’s internal wiring.
- Using a different handset, repeat steps 2 and 3. If you hear line noise on the original handset but not a different handset, then the original handset may be faulty.
- If you no longer hear line noise, please see the advice below.
If still hear line noise on both handsets, contact us.
If you don’t hear line noise any more
- Plug handset into the phone socket with a filter and make another call, listening for line noise. If you hear line noise again, that filter may be faulty.
- Plug other devices back in one at a time and attempt to make a call after each new device is plugged in. Always start with any devices that are plugged in with a filter.
- If you suddenly start hearing line noise again, then the device just plugged in may be faulty or interfering with phone service, or it may be plugged in with a faulty filter.
- Replace the filter or device if it is faulty, or adding a filter to a telephony device if it didn’t already have one.