Polycom Video Border Proxy™ (VBP™) 4350 2583-62562-001 Prospecto

The Polycom Video Border Proxy (VBP™) 4350 network appliance
allows your organization to conduct video conferences clearly
and securely by resolving the challenges caused by firewalls.  

Users of standards-based video endpoints, such as the high definition Polycom HDX 4000™ and Polycom 

HDX 7000™ series, can now remotely and securely communicate over video on the enterprise network. 

By performing video NAT at the IP address boundary, the VBP 4350 network appliance eliminates the risks 

of tunneling video and voice traffic from the network perimeter.  With both an Ethernet WAN port and a 

software-selectable integrated T1 CSU/DSU interface, the VBP 4350 appliance can be utilized as a WAN

access router or installed behind an existing WAN access router.  The VBP 4350W model also includes 

802.11 (b & g) wireless connectivity with other network devices.

The VBP 4350 appliance employs a stateful packet inspection firewall, in combination with an application

layer gateway, which determines when to open or close TCP and UDP ports for video and voice endpoints.  

To maximize video and voice quality, the VBP 4350 appliance forwards video traffic via the shortest possible

path, effectively minimizing jitter, delay, and packet loss.  

Bandwidth unused by video or voice is made available to boost WAN bandwidth and enable data traffic to

burst at full line rate.  To ensure control over video and voice quality, the VBP 4350 appliance also possesses

traffic management capabilities such prioritization, traffic shaping, call entry control, and diffserv

marking/policing.

Make Great Things Happen with the Polycom VBP 4350 Series Converged Network Appliance

In today’s Internet driven world, the ability to conduct real time communication and collaboration has 

become critical to an organization’s survival.  As the market leader in voice, video and content collaboration

and communications, our award-winning conference technology makes it easy for people to interact and 

maximize productivity – over any network, in just about any environment, anywhere around the globe.  

That’s why more organizations worldwide use and prefer Polycom conferencing solutions.  Because when 

people work together, great things happen.  See how you too, can achieve great things with the Polycom 

VBP 4350 series converged network appliance.

Polycom

®

Video Border Proxy 4350

Converged Network Appliance

Benefits

Enhanced network security
• Seamless resolution to challenges of

communicating through firewalls

• Application layer gateway for H.323

video, SIP, and MGCP voice 

• Dynamic access control list for simplified

set-up and operation

High quality video communication
• Video and voice media routing via 

shortest possible path

• Call entry control to prevent congestion

of prioritized traffic

• Traffic management capabilities including

priority queuing, traffic shaping, and 
diffserv marking/policing

• Support for up to 3 Mbps of voice, video,

or data traffic in any combination

Simplified deployment and use
• All-in-one network traversal solution for

voice, video, and data networks

• Both T1 (4350 only) and Ethernet WAN

access router

• Integrated four-port managed Ethernet

switch with VLAN support

• Embedded LAN side gatekeeper 

supporting up to 15 registrants