Polycom Soundstation Duo

Best-in-Class Investment Protection:
Since the SoundStation Duo phone is a fully functional circuit-switched conference phone, as well as supporting VoIP environments, it provides the ultimate in investment protection. If your organization or conference rooms are currently using circuit-switched telephony but you plan to migrate to VoIP in the near future, SoundStation Duo is the perfect conference phone for you.

Analog:
Analog is the original telephone technology, a system that converts air vibrations (like those created by the human voice) into similar electrical frequencies. Analog lines can support phones, fax machines, and modems and are typically found in homes or small office settings. Analog systems measure data in one continuous variable while digital breaks down and manipulates the data. One of the advantages of analog systems is that they dot not require a filter for band-limiting. Several SoundStation models operate on an analog system with features that are specifically designed for day to day communication.

SIP VoIP:
When broken down into 2 parts, SIP and VoIP are acronyms for Session Initiation Protocol and Voice Over Internet Protocol. The SIP and VoIP features move voice traffic through IP networks instead of traditional circuit-switched networks. The most popular form of IP network is the internet, users can communicate online with applications such as Skype. SIP and VoIP have taken communication to a new level, allowing for innovative technologies to replace traditional, outdated methods. These protocols can be found in the Polycom SoundStation IP series.

Automatic Gain Control:
This adaptive technology is a standard feature in most electronic devices. Automatic Gain Control (AGC) takes the average output signal level and adjusts the gain to the appropriate level for input signal levels. For example, when a signal is too strong the AGC reduces its volume and when the signal is too weak the AGC increases the volume. In telephones the AGC is most commonly used when a conversation is recorded. The AGC will take the large signal from the local user and the small signal from the long distance user and produce a recording that is well balanced.

HD Voice Clarity:
High definition voice technology provides the user with crystal clear voice delivery and reception. Enjoy an improvement in overall audio experience during VoIP based communication. This wideband technology differs from standard telephony in that it doubles the sampling of sound stream and width of the sound spectrum. Think of the television industry and the difference between HD and non HD pictures. High definition in voice communication functions in the same way, the sound is simply clearer. When utilizing HD voice in VoIP applications you will experience minimal interference and background static.

Echo Cancellation:
With this technology you are able to enjoy echo free communication. With the cancellation and suppression processes, information is only sent across the line when someone is actually speaking. So when a person stops talking the signal is cut off, leaving no room for background noise to filter in and create an echo.