Upgrade T28P firmware

[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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Threaded Mode \| Linear Mode Upgrade T28P firmware
Author	Message

rlsabin Offline

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Posts: 61

Joined: Nov 2012

Reputation: 2

Post: #6

RE: Upgrade T28P firmware

I believe that they are saying that the only software version that you can upgrade to would be another version that was built was built for Crescendo ie the x.70.37.9. We run into the same problem with Yealink phones running Tadiran firmware the only upgrade that the phone will take is another Tadiran firmware. This is very frustrating as Tadiran approved firmware is probably 2 years behind what Yealink is using now. We pay more to use non Tadiran Yealink phones so we dont have to run their obsolete firmware.

Rick

12-25-2013 04:10 AM

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Messages In This Thread

Upgrade T28P firmware - fdtcloud - 12-20-2013, 12:28 AM

RE: Upgrade T28P firmware - Yealink Support - 12-20-2013, 05:45 PM

RE: Upgrade T28P firmware - fdtcloud - 12-24-2013, 12:52 AM

RE: Upgrade T28P firmware - Yealink Support - 12-24-2013, 02:04 PM

RE: Upgrade T28P firmware - fdtcloud - 12-25-2013, 02:27 AM

RE: Upgrade T28P firmware - rlsabin - 12-25-2013 04:10 AM

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