Global IP Office Technical Tip
082: IP Office 412: Fast Ethernet Ports are Half Duplex
*Release Date: 3 August 2005
The Fast Ethernet ports on the IP Office are set to half duplex. Avaya mandates that when the IP Office 412 is plugged into a Fast Ethernet switch, the installer should verify that the switch has negotiated to half duplex. It is the responsibility of the Installer to
know how to check for half duplex negotiation on the switch.
Failure to have the switch port negotiate to half duplex can cause poor voice quality in the IP Office VoIP network.
This tip was previously issued as US Technical Tip Number 39.