How To - Optimize Networks for VoIP

Description:

This article will show you the following:

Disable SIP ALG/Normalization/Transformation.
Verify that NAT Binding/Keep-Alive packets are not blocked, but if they are and there is no option to enable, then set the phone's UDP session timeout to 300 seconds.
Setup outbound rules to allow connections to Audian's server See Article: Server information
1. RTP addresses
2. SIP Registration Addresses
3. Phone Configuration Servers
4. Phone DNS & Time Servers
5. WAN Ping Server
Setup QOS settings. See Article: QOS Settings Guides
1. See Bandwidth Management/Rate Control/Traffic Shaping settings for your equipment.

Migrated from Confluence on 2026-02-03

Original Confluence Article