Hello Bivin VIjai,
- For all SoundPoint / SoundStation IP phones using SIP and not LYNC UC Software 4.0.11 is the latest software
4.1.1 is for LYNC only and older - For all VVX Phones using SIP and not LYNC UC Software 5.5.0 is the latest software
UC Software 5.4.4 is for LYNC / Skype only
Please ensure you are using the above and I work with our security department to work on confirmation if the items listed by yourself are already addressed.
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