Overview
Mobile and Web Phone allow you to stay connected from anywhere. At home, Wi-Fi quality is critical for call quality and reliability. This guide provides best practices and troubleshooting steps to ensure the best performance while working remotely.
Best Practices for Optimal Performance Use a Stable and High-Speed Connection
Recommended speed: 10 Mbps down / 2 Mbps up
Prefer fiber or cable over DSL or satellite
Avoid public Wi-Fi or mobile hotspots
Use 5 GHz Wi-Fi Instead of 2.4 GHz
Less interference and faster speeds
Ideal for video/voice applications
Prioritize Voice Traffic (QoS)
Enable QoS on your router and prioritize VoIP traffic
Reduces delays and dropped packets
Keep Software & Firmware Updated
Update the Mobile app and your browser
Keep your router firmware current
Close Background Applications
Streaming, file downloads, and gaming can affect call quality
Use Headsets
Use a USB headset (Web) or wired/Bluetooth earphones (Mobile) for better audio
Troubleshooting Common Issues
Issue | Cause | Solution |
One-way or no audio | NAT/firewall or poor signal | Restart app/router; disable SIP ALG |
Choppy or dropped calls | Weak signal/congestion | Move closer to router; pause other devices |
Not registering | Permissions/firewall | Allow mic/network; check port settings |
Calls not ringing | Battery optimization | Disable Do Not Disturb; allow background activity |
Web Phone not loading | Browser or permissions | Use Chrome/Firefox; clear cache; allow mic access |
Using in Weak or Unstable Wi-Fi Areas
Use Wi-Fi Extenders or Mesh Systems – Improve coverage throughout your home
Maintain Line of Sight – Avoid barriers like walls or appliances
Switch to Mobile Data (Mobile only) – Disable Wi-Fi temporarily if LTE/5G is more stable
Enable Call Forwarding – Forward to your cell number as backup
Limit Other Network Usage – Pause downloads, streaming, etc.
Test Before Important Calls – Make a test call from your current location Pro Tip: Check Wi-Fi Signal Strength
On iOS: Settings > Wi-Fi > Tap ⓘ → signal bars or RSSI
On Android: Use Wi-Fi Analyzer or similar app
Signal better than -60 dBm is ideal. Below -75 dBm may result in poor call quality.
Switching Between 5 GHz and 2.4 GHz
Band | Pros | Cons | Best Use |
5 GHz | Faster speeds, less interference | Shorter range, poor wall penetration | Near the router, in open areas |
2.4 GHz | Longer range, better wall penetration | More interference, slower speeds | Far from router, through walls, larger homes |
When to Use 2.4 GHz
Two or more rooms away from the router
Experiencing dropped or choppy calls
Weak signal bars on your device
In multi-story homes or dense construction
How to Switch Bands
Access your router settings and give each band a separate SSID (e.g., 'MyWiFi_2G' and 'MyWiFi_5G'). Connect to the 2.4 GHz network manually when farther from the router.
Router & Network Configuration
Disable SIP ALG – can interfere with VoIP signaling.
Enable QoS and prioritize the device or app used for SNAP.
Open required ports if behind a firewall:
SIP signaling: UDP/TCP 5060
RTP media: UDP 10000–20000 (or per your provider specs)
Additional Recommendations
Reboot your modem/router weekly to clear cached errors.
Avoid VPNs while using SNAP unless your system is configured for it.
Contact your IT or provider if you consistently experience quality issues.