Yealink SIP-T28, Руководство по эксплуатации объекта

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5
4. Configure the DSS Key as Intercom
After the above settings, DSS Key3 will work as an Intercom key with extension 102.
5. How to auto provision
1) Use DHCP Option 66 to update firmware massively via HTTP
In this way, there’s no need to configure at the phones.
①
Specify an address(TFTP) for Option 66 in your DHCP Server
②
Prepare a CFG file as below
①
Select Phone
②
Select DSS Key
⑤
Intercom code +
Extension number
③
Select Intercom
④
Select the right line
TFTP Server address
in Option 66