User's Manual Part 1

Firmware Version 1.0.0.1 UCM6200 Series IP PBX User Manual Page 88 of 320
Figure 62: UCM6200 Zero Config
SIP SUBSCRIBE
When the phone boots up, it sends out SUBSCRIBE to a multicast IP address in the LAN. The
UCM6200 discovers it and then sends a NOTIFY with the XML config file URL in the message body.
The phone will then use the path to download the config file generated in the UCM6200 and take the
new configuration.
DHCP OPTION 66
This method should be used on the UCM6202/UCM6204 because only the UCM6202/UCM6204 have
WAN and LAN port with LAN port supporting the router function. When the phone restarts (by default
DHCP Option 66 is turned on), it will send out a DHCP DISCOVER request. The UCM6202 receives it
and returns DHCP OFFER with the config server path URL in Option 66, for example,
https://192.168.2.1:8089/zccgi/. The phone will then use the path to download the config file generated
in the UCM6200.
mDNS