Hello Flinte,
welcome to the Polycom Community.
According to the Engineering Advisory 64731 Polycom® UC Software 4.0.0: Upgrade and Downgrade Methods => here <= is only applicable to:
This engineering advisory applies to system administrators who plan to upgrade the following Polycom phones to UC Software 4.0.x: Polycom® SoundPoint® IP 321, 331, 335, 450, 550, 560, 650, and 670 desktop phones; Polycom® SoundStation® IP 5000, 6000, and 7000 conference phones; and Polycom® VVX® 1500 business media phones.
Please ensure to provide some feedback if this reply has helped you so other users can profit from your experience.
Best Regards
Steffen Baier
Polycom Global Services
<======== Signature / Disclaimer ========> Please be aware:For questions about the type of support to expect please check
here Please also ensure you always check the
VoIP ,
Video Endpoint ,
Skype for Business ,
PSTN or
RPM FAQ's
Please remember, if you see a post that helped you , and it answers your question, please mark it as an
"Accept as Solution".
The title
Polycom Employee & Community Manager is an automatic setting within the community and any forum reply or post is based upon my
personal experience and
does not reflect the opinion or view of my employer.
Poly employee participation within this community is not mandatory and any post or FAQ article provided by myself is done either during my working hours or outside working hours, in my private time, and maybe answered on weekends, bank holidays or personal holidays.
