[YMCS/YDMP Free Trial Program]Yealink would like to offer Free Trial Program of Yealink device management service for our current eligible customers. You can see the details below.

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Updating firmware on SIP-T22P and SIP-T28P
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James_Yealink Offline

Posts: 1,159
Joined: Aug 2014
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Post: #2
RE: Updating firmware on SIP-T22P and SIP-T28P
Hi Erick,

You can achieve it by autoprovision. These are brief steps:

1. Set up a provision server(HTTP/TFTP/FTP/HTTPS)
2. Place the firmware you want to upgrade to in the server.
2. Edit a configuration file, place a firmware upgrade parameter and language parameter into this file.
3. Place the file in provision server.
4. Write the URL of this provision server into a DHCP option(43 or 66).
5. When phone reboot, it will get provision server address from the DHCP server, then go to fetch configuration and apply it.
6. Phone will upgrade and change language.

For more information please read our autoprovision guide:

Autoprovision template:

01-29-2015 08:08 PM
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RE: Updating firmware on SIP-T22P and SIP-T28P - James_Yealink - 01-29-2015 08:08 PM

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