If you are using a Spark HG630b router and are having issues with your Conversant voice system, you may need to disable the SIP ALG function on your Spark router. To disable this function follow the instructions below:
- Log into your Spark router
- Select Advanced
- Select NAT
- Under the ALG section, untick Enable SIP ALG
- Click submit
This will restart your router and resolve the issues with your VoIP system.