Hello Daniel,
welcome to the Polycom Community.
The community's VoIP FAQ contains this post here:
Mar 30, 2016 Question:Can I customize the Idle Screen of a Polycom RealPresence Trio 8800?
Resolution:Please check => here<=
aka <test mr.bg.url="ftp://3:1@10.252.149.102/polycom-logo.jpg" mr.bg.selection="Custom" />
In regards to the Vendor option we have:
Sep 13, 2016 Question:Do Polcyom Phones support the DHCP Option 60 Vendor Data Format?
Resolution: Please check => here <=
aka the Vendor Option is Polycom-Trio8800
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
