Hello sschultz,
welcome to the Polycom Community.
The community's VoIP FAQ contains this post here:
Jul 10, 2013 Question: How can I use VLAN's with Polycom phones?
Resolution: Please check => here <=
Please use the above to troubleshot your issue.
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
