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Polycom 4300T manual Optionally enable priority IP addresses, Enable CAC

Models: 4300T

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User Guide V2IU 4300T Converged Network Appliance

3.Specify the upstream and downstream bandwidth of your WAN link

4.Enter the WAN Downstream Bandwidth in Kbps.

5.Enter the WAN Upstream Bandwidth in Kbps.

Note

For FT1/T1/E1 links the upstream and downstream bandwidths will always be the

 

same value (the link is full-duplex).

 

 

Optionally enable priority IP addresses

VoIP traffic from devices that use the VoIP ALG function (phones, video stations, softphones on Pcs, etc.) are already marked as high priority and do not need to be manually configured in this list. This list is used to prioritize voice traffic from trunk interfaces of IP PBXs or other high priority devices that do not use the VoIP ALG function of the 4300T.

>>Enter the IP address of other high priority devices in the priority IP Addresses box.

You can enter individual IP addresses or a range using by appending a “-“ character to the last octet. For example, 10.10.10.2-5 would specify 10.10.10.2, 10.10.10.3, 10.10.10.4 and 10.10.10.5 as voice devices.

Warning Care must be taken to ensure that the IP addresses entered do not include data devices such as PCs or workstations. Traffic from these devices will be placed in the priority voice queue internal to the 4300T and burst up to full line rate. This will starve actual voice devices by consuming priority bandwidth and result in dropped calls, busy signals & poor voice quality.

Enable CAC

The 4300T uses CAC to limit the number of active voice calls over the WAN link. This is necessary because a typical installation uses a ratio of 1:2 or 1:4 active voice calls to voice devices on the assumption that 50% or 25% of all users are on the phone at the same time. These ratios are guidelines only and at times the number of concurrent calls may exceed the amount of WAN bandwidth available to process the calls. In this instance existing phone calls will experience poor quality or be dropped all together. To prevent this from occurring a typical voice installation will set a threshold for the maximum number of concurrent voice calls supported by the WAN access link. New call requests in excess of this threshold will receive the equivalent of a “fast busy” and the WAN link will not become oversubscribed.

For IP Centrex installations the maximum number of concurrent voice calls is usually configured in the 4300T by enabling CAC. When the 4300T is deployed in IP PBX applications the maximum number of concurrent calls could be configured in the IP PBX. If the PBX is responsible for this setting you do not need to configure CAC in the 4300T. Please check with your IT administrator to determine if this is the case.

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Polycom 4300T manual Optionally enable priority IP addresses, Enable CAC
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4300T specifications

The Polycom 4300T is an innovative communication device designed for businesses seeking reliable and high-quality audio conferencing solutions. As part of Polycom's renowned lineup of voice communication products, the 4300T delivers superior sound quality, making it an essential tool for any professional environment.

One of the standout features of the Polycom 4300T is its Acoustic Fence technology, which effectively eliminates background noise, allowing participants to focus on the conversation without distractions. This feature is particularly beneficial in open office settings where ambient noise can be a significant barrier to clear communication.

The device is designed with a user-friendly interface, making it accessible for users of all levels of tech-savviness. Its intuitive controls and easy-to-read display facilitate seamless operation during meetings, ensuring that users can engage in discussions effortlessly. Additionally, the 4300T boasts a multi-device connectivity capability, allowing it to connect easily with various devices such as smartphones, tablets, and computers via Bluetooth and USB.

Another remarkable characteristic of the Polycom 4300T is its exceptional audio quality achieved through the use of Wideband technology. This allows for crystal-clear voice transmission, making conversations more natural and easy to follow. The device also features a built-in speakerphone, which adds to its versatility, allowing for hands-free communication in smaller conference rooms or personal office spaces.

The 4300T supports both SIP and H.323 protocols, enabling compatibility with a wide range of communication systems and platforms. This flexibility is crucial for organizations that utilize different software and hardware for their communication needs, as it simplifies integration into existing infrastructures.

Moreover, the Polycom 4300T is built to deliver durability and longevity. Its robust design ensures that it can withstand the rigors of daily use in busy corporate environments. The device is also energy-efficient, making it an environmentally friendly choice that helps businesses save on energy costs.

In conclusion, the Polycom 4300T is a formidable audio conferencing solution that combines advanced technologies, user-friendly features, and durability. Its Acoustic Fence technology, exceptional audio quality, multi-device connectivity, and compatibility with various protocols make it an invaluable asset for businesses aiming to enhance their communication capabilities. Investing in the Polycom 4300T ensures that organizations can conduct clear, effective meetings, fostering collaboration and productivity among teams.