User Guide

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R27A/V
Admin Guide
4.5.2. 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).
Manual Autop
Autop is a centralized and unified upgrade for phones. It is also a
simple and time-saving configuration for phones. It is mainly used
by devices to download corresponding configuration documents
from the server which is using TFTP / FTP / HTTP / HTTPS network
protocol. Achieving the purpose for updating devices’s
configurations and making users to change the phone configuration
Figure 4.5.2-1 PNP
Figure 4.5.2-2 Manual auto provision