What type of phone are you using?
What's the desk phone issue?
What's the mobile app issue?
What's the computer app issue?
🔇
No dial tone / phone is dead
Try these steps:
- Check power:
- Is the phone plugged into power or ethernet?
- PoE phones get power through the ethernet cable
- Look for any lights on the phone
- Check ethernet cable:
- Make sure cable is firmly plugged into phone and wall
- Look for green/orange lights on ethernet port
- Reboot the phone:
- Unplug power/ethernet for 30 seconds
- Plug back in and wait 2-3 minutes for boot-up
- Check display: Does the screen show anything? "Registering..." or an error?
📵
Can't make outbound calls
Try these steps:
- Check dial tone: Pick up the handset — do you hear a dial tone?
- Dial correctly:
- For external calls: dial
9 + area code + number (if required)
- Or just dial 10-digit number directly (depends on system setup)
- Try a different number: Make sure the number you're calling is valid
- Check display for errors: "Forbidden", "Not Allowed", "No Route"?
- Try an internal extension: Can you call a coworker's extension?
💡 Common dial patterns:
- Internal: 3-4 digit extension (e.g.,
1001)
- Local:
9 + 10 digits or just 10 digits
- Long distance:
9 + 1 + 10 digits
- International:
9 + 011 + country code + number
📞
Can't receive calls
Try these steps:
- Check DND (Do Not Disturb):
- Look for a "DND" indicator on the phone screen
- Press the DND button to toggle it off
- Check call forwarding:
- Your calls may be forwarded to voicemail or another number
- Look for "Forward" or "CF" on the display
- Test with another phone: Call your extension from a coworker's phone
- Check ringer volume: Press volume up button
- Check phone registration: Is the phone showing "Registered" or online?
🔊
Poor call quality / static / echo
Try these steps:
- Check your network:
- VoIP quality depends on internet connection
- Ask IT if the network is congested
- Check cables:
- Replace ethernet cable (try a known-good cable)
- Make sure handset cord is fully inserted
- Reboot the phone: Unplug for 30 seconds
- Test with headset: If available, try a headset instead of handset
- Test different calls: Is it all calls or just one caller?
💡 Quality issues are often network-related
Static, choppy audio, robotic voice, and echo are usually caused by:
- Network congestion
- Packet loss
- Poor Wi-Fi signal (if phone is wireless)
- Bandwidth saturation
📧
Voicemail issues
Try these steps:
- Access voicemail:
- Press the voicemail button on your phone
- Or dial
*97 or *98 from your extension
- Default PIN: Try extension number or
0000 if you haven't set a PIN
- Set up voicemail:
- Dial voicemail access code
- Follow prompts to record greeting and set PIN
- Check voicemail-to-email: Voicemails may be sent to your email
❌
Mobile app won't register
Try these steps:
- Check internet connection: Make sure you're on Wi-Fi or cellular data
- Verify credentials:
- Username (usually your extension)
- Password (provided by your admin)
- Server/Domain (e.g.,
yourdomain.gigtel.com)
- Restart the app: Force-quit and reopen
- Check permissions:
- iPhone: Settings → Gigtel → Allow notifications, microphone
- Android: Settings → Apps → Gigtel → Permissions
- Reinstall the app: Delete and download fresh from app store
📵
Can't make or receive calls
Try these steps:
- Check registration status: App should show "Registered" or "Connected"
- Check internet: Calls require active Wi-Fi or cellular data
- Check microphone permission:
- iPhone: Settings → Privacy → Microphone → Gigtel (enable)
- Android: Settings → Apps → Gigtel → Permissions → Microphone (allow)
- Disable battery saver: Battery optimization may kill the app
- Try switching networks: Wi-Fi to cellular or vice versa
- Restart your phone
🔔
Not getting call notifications
Try these steps:
- Enable notifications:
- iPhone: Settings → Notifications → Gigtel → Allow Notifications
- Android: Settings → Apps → Gigtel → Notifications → Enable all
- Disable Do Not Disturb: Check your phone's DND settings
- Check Focus modes (iPhone): Work/Sleep modes may block notifications
- Disable battery optimization:
- Android: Settings → Battery → Gigtel → Unrestricted
- This prevents Android from killing the app in background
- Keep app running in background: Don't force-close the app
💡 Push notifications require background app refresh
The Gigtel app needs to run in the background to receive incoming call notifications. Battery saver modes can interfere.
🔊
Poor call quality
Try these steps:
- Check internet speed:
- VoIP needs stable internet (not just fast)
- Use Wi-Fi when possible instead of cellular
- Move closer to Wi-Fi router: Weak signal = poor quality
- Close other apps: Free up bandwidth and processing power
- Use headphones: Bluetooth or wired headphones often work better
- Disable VPN: VPNs can cause latency/jitter
- Try cellular data: If Wi-Fi is congested
❌
Computer app won't connect
Try these steps:
- Check internet connection: Make sure your computer is online
- Verify credentials:
- Username (usually your extension)
- Password
- SIP server/domain
- Check firewall: Corporate firewall may block VoIP ports (5060, 5061)
- Try different network: Company Wi-Fi vs ethernet
- Restart the app
- Reinstall: Download latest version from Gigtel
🔇
No audio / can't hear caller
Try these steps:
- Check output device:
- In Gigtel app: Settings → Audio → Speaker/Headset
- Make sure correct output is selected (headphones, speakers)
- Check computer volume: Unmute and turn up system volume
- Test with different device: Try switching to headphones or different speakers
- Check Windows/Mac audio settings:
- Windows: Sound settings → Output device
- Mac: System Preferences → Sound → Output
- Restart the app
🎤
Caller can't hear me
Try these steps:
- Check microphone permission:
- Windows: Settings → Privacy → Microphone → Allow Gigtel
- Mac: System Preferences → Security & Privacy → Microphone → Gigtel
- Select correct input device:
- In Gigtel app: Settings → Audio → Microphone
- Choose correct microphone (built-in, headset, etc.)
- Check mute button: Make sure you're not muted in the app
- Test microphone:
- Windows: Sound settings → Input → Test microphone
- Mac: System Preferences → Sound → Input → Speak and watch levels
- Try different microphone: Use a headset instead of built-in mic
🔊
Poor call quality / robotic voice
Try these steps:
- Check network stability:
- Run speed test: fast.com
- VoIP needs consistent bandwidth, not just speed
- Close bandwidth-heavy apps: Streaming video, downloads, etc.
- Use ethernet instead of Wi-Fi: Wired = more stable
- Check CPU usage: Close unnecessary programs
- Disable VPN: VPNs add latency
- Try a different codec: In Gigtel settings (if available)
💡 Robotic/choppy voice = packet loss
When your internet connection drops packets, voice sounds robotic or cuts out. This is usually network-related, not the phone app.