Hello Ahmed,
welcome to the Polycom Community.
The ViewStation Products, to my own knowledge, are no longer sold or supported since 2010 or even 2009 so you may want to invest into some current infrastructure.
The Video FAQ contains this post here:
- Jun 21,2014 Question: Are there specific Ports in my firewall that I need to open in order to utilize video conferencing?
Answer: Please check the relevant release notes or admin guide for your device under the section “Inbound and Outbound Ports” or "Port usage" => here <=.
In addition check this FAQ post => here <= for more details and troubleshooting suggestions.
- Jun 21,2014 Question: What could be causing one way video or one way audio when utilizing video conferencing?
Answer: Please check the relevant release notes or admin guide for your device under the section “Inbound and Outbound Ports” or "Port usage" => here <= in order to open the relevant firewall ports.
In addition check this FAQ post => here <= for more details and troubleshooting suggestions.
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
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The title Polycom Employee & Community Manager is a community setting and does not reflect my role. I am just a simple volunteer in the community like everybody else. My official "day" Job is 3rd Level support at Poly but I am unable to provide official support via the community.
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Notice: This community forum is not an official Poly support resource, thus responses from Poly employees, partners, and customers alike are best-effort in attempts to share learned knowledge. If you need immediate and/or official assistance please open a service ticket through your proper support channels.
Please also ensure you always check the VoIP , Video Endpoint , Skype for Business , PSTN or RPM FAQ's
