Hello,
got the following Problem.
We use a Mivoice Office 400 with a Mitel TDM Dect System where
we use Mitel 622 with the FW 133.077.053 (some unused ones got the FW 133.073.048)
We are migrating to SIP Dect and therefore i need the FW 7.4.5 to be active on the devices.
The Mitel 622 with the older FW 133.073.048 can be flashed with the Mitel USB Tool to 7.4.5.
The Mitel 622 with the FW 133.077.053 cant be changed to 7.4.5. I got told in the Update Tool that the FW is up to date and there is no way to switch over to 7.4.5.
Is there any other way to get the 7.4.5 active when the TDM Dect 133.077.053 is the active part on the Phone?
