Crackling or noise on the line (Your own broadband)
Guide reference: HG-0153
Quote this reference if you contact us about this guide.
Approx. 2 min read
Fix poor call quality with your own broadband. Check cables, SIP ALG, and internet speed. P
Don't worry. With your own broadband, most phone problems are adapter cables, internet outages, or a router setting called SIP ALG.
Quick answer
Poor audio with your own broadband is often cables, busy internet, or SIP ALG in your router.
More detail
Poor audio with your own broadband is often cables, busy internet, or SIP ALG in your router.
Steps for your own broadband
Push Phone1 and handset cables in firmly.
Pause streaming and downloads during test calls.
Turn off SIP ALG in your router.
Run a broadband speed test. Contact your broadband provider if speeds are very low.
See Poor call quality with your own broadband for full steps.
What success looks like
Your home broadband is online, adapter lights are ready, and you can make and receive calls on your home number.
Common mistakes
- Plugging the phone into a wall socket instead of Phone1 on the adapter.
- Expecting Simple Telecoms to fix your broadband when only the phone service is with us.
- Leaving SIP ALG switched on in the broadband router.
Things to know
- See Digital home phone with your own broadband for full setup.
- See Phone not working with your own broadband for adapter faults.
- We do not supply or support your broadband router.
Still not working?
If crackling continues after these checks, report a fault online and note whether all phones are affected.