Hello Dhanaji,
welcome to the Polycom Community.
To my knowledge this is fixed.
You would need to work with a Polycom reseller or a Polycom Sales Engineer to raise a feature request.
The community's VoIP FAQ contains this post here:
Jan 03, 2013 Question: How can I request a change to the current Polycom SIP / UCS Software?
Resolution: Please check => here <=
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