Choppy or robotic call audio
Quick checks before you call IT.
Phone won't turn on
Check power and network when the screen stays blank.
Calls go straight to voicemail
Find out why your phone isn't ringing.
Echo on calls
Stop hearing your own voice back.
Headset not working
Get sound working through your headset again.
Can't hear the caller
Fix quiet or missing sound on your end.
Phone says not registered or no service
What to try before calling IT.
Forgot your voicemail PIN
Get back into your voicemail.
Calls drop on the mobile app
Keep app calls connected.
Outside calls won't connect
Fix calls that fail or give a busy tone.
Choose a headset for calls
Pick the right headset for your desk phone or computer.
Phone keeps restarting
Your desk phone turns itself off and on.
Caller ID shows the wrong number
People see the wrong number, or no number, when you call.
Phone won't register
Work through the usual causes of Register Failed or a missing line.
Fix one-way or no audio
Calls connect but someone can't hear. Usually a router or firewall problem.
Set up QoS for voice
Give phone calls priority on your network.
Work out how much bandwidth you need
Check your internet can handle your calls.
Plan a voice VLAN
Keep phones on their own network segment.
Check network quality for calls
Know the numbers that make calls sound good.
Secure your phone system
Protect against toll fraud and hacking.
Choose a VoIP-friendly router
What to look for in a router for business calls.
Move your phone number to a new provider
Keep your number when you change provider.
Make sure emergency calls work
Check emergency calls work and show the right address.
Hosted or on-premise phone system?
Decide where your phone system should run.
Moving off old copper phone lines
What to check when copper phone lines are switched off.
Set up a phone for someone working from home
Give remote staff a working office phone.
Turn off SIP ALG on your router
Fix one-way audio and dropped calls caused by the router.
Choose a PoE switch for desk phones
Power phones over the network cable.
Plan for an internet outage
Keep taking calls when your internet goes down.
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