Security and Firewalls

Owned by Tom Higgins
Dec 09, 2022
1 min read

Firewall Rules

The below list is a set a of suggested firewall rules that enhance the performance of the Voice Over Cloud through firewalls and corporate routers.

Whitelist IPs

We strongly suggest to avoid any packet inspection on traffic coming from IPs:

  • 103.135.87.3

  • 103.135.87.14

  • 103.135.87.35

The reason is because voice traffic can create a lot of network noise and firewalls can treat that suspicious

QoS ( Bandwidth Reservation )

Although the traffic is deemed high priority when it leaves our network, it may not arrive to your network in the same way, this is out of our control and is controlled by your ISP, or their upstream providers. As such we recommend to reserve some bandwidth on your router to ensure traffic flows in each direction even under high load.

The recommend settings is 100kbps both upload and download per user. E.g. if you have 10 users we recommend reserving 1Mbps in each direction