Firmware Version 1.0.2.21 UCM6100 Series IP PBX User Manual Page 53 of 159
Figure 27: Provisioning Example 2
This is another typical setup. In this setup, the UCM6100 is placed directly over the internet (outside from
the network where the phones are deployed). Under this topology, the UCM6100 cannot reach the phones
on its own and the typical auto discovery will not work.
In this case, the phones can still be provisioned. But the UCM6100 will need help to get the phones to point
itself to the UCM6100 first. One possible solution could be as follows.
x Turn on DHCP Option 66 in the network where the phones are deployed and set the value as:
option tftp-server-name "http(s)://ucm_ip_address:port/zccgi".
x All Grandstream phones have DHCP Option 66 turned on by default.
x Once the phone is provisioned with the DHCP Option 66, it will be redirected to the UCM6100 and send
request for the XML config file.
x When the phone requests cfgMAC.xml from the UCM6100, the UCM6100 will add the phone to the
provision list.
http://arttel.ru
http://arttel.ru/shop/ip-atc/ip-ats-grandstream-ucm6102
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