3rd Party Firewall Rules

This page is part of the Network and QoS guides.

Networking

IP Addresses

The following addresses must be allowed to pass through your firewall to ensure proper function of your phone systems.

Allow

Voice Traffic

• Dallas: 216.58.152.240/28
• Denver: 74.63.180.0/28

Fax Traffic

• White Fax ATA: ataserver.ipfax.net & ataini.ipfax.net

Ports

The following ports must be allowed to pass through your firewall to ensure proper function of your phone systems.

Allow

SIP

• UDP/TCP: 5060-5062 (SIP signaling)

WebSockets

• TCP: 9002 (NOVA Web Softphone, Mobile App)

Audio/Video Transmission

• UDP/TCP: 20000-32000 (Needed for Audio/Video streams RTP)

Advanced Routing Options

Not all firewalls, gateways, or modems will have these options visible. You may have to contact your ISP in order to make sure they have these options disabled on your incoming connection.

Disable

Settings

• SIP-ALG
• H.225

Sonic Wall Specific Routing

Disable

Settings

• SIP Transformations

Enable

Settings

• Consistent NAT
• UDP Timeout to 120

VoIP Bandwidth Requirements

Our default compression uses 90kbps up & down for one single call.

Example: 6 active calls is roughly 540kbps up & down reserved. This would be a normal use case for ~20 seats with an average use of 30%.