Problem Change Firmware T48s from SFB to SIP

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Threaded Mode \| Linear Mode Problem Change Firmware T48s from SFB to SIP
Author	Message

kumagera Offline

Junior Member

Posts: 1

Joined: Jan 2022

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Post: #3

RE: Problem Change Firmware T48s from SFB to SIP

(01-10-2022 08:04 AM)jeff.smith@singlesrc.com Wrote:
(11-18-2021 08:01 PM)Lars Maschke Wrote: Dear Community,

I tried the new firmware 66.9.0.100 for "Skype for Business" on T48s.

This was just for trying SFB. I can't reset the phone to the normal SIP-Version firmware 66.86.0.15. This does not work. There is still the SFB-version installed.

How can I change this behavior?

Thanks in advance
Lars

Did you ever figure anything out? I'm running into the same thing.

I had the same issue with a T42s - successfully reverted back to SIP from SFB using these instructions from Yealink.

https://support.yealink.com/en/portal/kn...0471180dd1

01-14-2022 10:22 AM

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Messages In This Thread

Problem Change Firmware T48s from SFB to SIP - Lars Maschke - 11-18-2021, 08:01 PM

RE: Problem Change Firmware T48s from SFB to SIP - jeff.smith@singlesrc.com - 01-10-2022, 08:04 AM

RE: Problem Change Firmware T48s from SFB to SIP - kumagera - 01-14-2022 10:22 AM

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