**1. Poor Call Quality**
- Check your internet bandwidth (recommended minimum: 100 kbps per call)
- Test network jitter and latency
- Consider implementing Quality of Service (QoS) settings
**2. Dropped Calls**
- Verify network stability
- Check firewall settings and port configurations
- Ensure proper SIP ALG settings on your router
**3. One-Way Audio**
- Review NAT settings on your firewall
- Check RTP port ranges
- Verify symmetric RTP is enabled
**4. Registration Issues**
- Confirm SIP credentials are correct
- Check DNS settings
- Verify time synchronization between devices
If these steps don't resolve your issue, contact our support team for advanced troubleshooting assistance.
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