[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.
https://www.yealink.com/ydmp-freetrial-2020


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T20p Firmware update.
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James_Yealink Offline
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Post: #2
RE: T20p Firmware update.
Hi Devindebie,

Your firmware is a protection firmware and can't be upgraded direclty.
Please contact your distributor Tiptel for a help.

Regards,
james
09-20-2014 10:54 AM
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Messages In This Thread
T20p Firmware update. - kevindebie - 09-19-2014, 06:18 PM
RE: T20p Firmware update. - James_Yealink - 09-20-2014 10:54 AM

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