User Guide

R28A/V
Admin Guide
4.6.Upgrade
4.6.1.Web Upgrade
Go to Upgrade - Basic to do web upgrade.
Upgrade: Choose .rom firmware from the PC, and then click
“Submit” to start update.
4.6.2.Autop Upgrade
Go to Upgrade - Advanced to configure automatically update
server’s settings.
PNP
Plug and Play, once PNP is enabled, the phone will send SIP
subscription message to PNP server automatically to get auto
provisioning server’s address.
By default, this SIP message is sent to multicast address
224.0.1.75 (PNP server address by standard).
Figure 4.6.1 Web upgrade
Figure 4.6.2-1 PNP