Voice over IP (VoIP) services depend critically on network configuration. Small and medium-sized businesses often struggle with voice quality and connectivity issues that can be resolved through strategic network optimisation. This guide provides a comprehensive walkthrough for resolving VoIP problems within an Omada network environment.
Common VoIP Network Challenges
- Dropped calls
- One-way audio problems
- Poor call quality
- Network configuration conflicts
Systematic VoIP Network Optimization
1. Disable SIP ALG
Application Layer Gateway (ALG) often creates more network problems than it solves for VoIP. By disabling this feature, you can dramatically improve call reliability.
- Access your network controller
- Navigate to Settings > Transmission > NAT
- Locate SIP ALG option
- Disable the setting
2. Implement Quality of Service (QoS)
Prioritising voice traffic ensures consistent call quality by allocating appropriate bandwidth and network resources.
- Enable VoIP prioritisation in network settings
- Configure default SIP ports (typically 5060)
- Consider implementing Voice VLAN or Auto VoIP
3. Wireless Network Optimization
For Wi-Fi connected VoIP devices, network stability is paramount.
- Maintain signal strength above -65 dBm
- Prefer 5GHz band when possible
- Monitor channel utilisation
- Enable 'First Priority for VoIP SIP/RTP'
Advanced Considerations
When basic configurations fail to resolve issues, consider these additional steps:
- Update network device firmware regularly
- Verify provider-specific configuration requirements
- Conduct periodic network performance tests
Effective VoIP performance relies on meticulous network configuration. By systematically addressing potential issues and implementing these recommendations, businesses can significantly improve their voice communication reliability.
