ZyXEL Communications P-2000W V2 manual What is codec?, What is the relation of codec and VoIP?

Page 7

P2000W V2 Troubleshooting Guide

Voice quality is most commonly rated through a voice quality metric called the Mean Opinion Score (MOS) which is recommendation by ITU-T. The MOS is a 5 point scale where 5 represent excellent voice quality and 1 represent bad voice quality.

11. What is codec?

Codec is an algorithm which converts analog signal into digital signal and vice versa. There are three main types of waveform codec, source codec, and hybrid codec. Each consume different amount of bandwidth and provide different voice quality level.

12. What is the relation of codec and VoIP?

As VoIP is general term send voice information in digital form in discrete packets over digital network and this digital network is public network, thus there maybe other packet such data packet uses network at the same time. The codec choose is related to how much bandwidth voice packet will consume. In bandwidth wise aspect the smaller amount of bandwidth used the better. But in voice aspect the higher quality the better.

13. Which codec should I choose?

As which codec choose is depending on what codec is supported on both end of the VoIP host. Generally a codec with low bandwidth consumption and high voice quality is a good codec.

14.I have press load default setting from Menu->Setting->Load Default option from the phone cursor but the device seems not fully resetted?

'Load default' is not reset all of the settings. If you press the 'load default', it will reset the Time format, Key lock, Melody, Ring volume, Banner and Vibrator setting to default.

15. How do I reset the device to factory default?

To reset P2000W V2 to default including username/password. Please follow the step as below.

All contents copyright (c) 2005 ZyXEL Communications Corporation.

Page 6 Page 8
Image 7
Page 6 Page 8
Contents 2000W VoIP wireless phonePage Customer Support Frequently Asked Question IntroductionWhat advantage does VoIP can provide? What is VoIP?Why use IP for voice? What is the relationship between codec and VoIP?What do I need in order to use SIP? What is the difference between H.323 and SIP?What is voice quality? Can H.323 and SIP interoperate with one another?Which codec should I choose? What is codec?What is the relation of codec and VoIP? How do I reset the device to factory default?Can P2000W V2 support outbound proxy? What is the P2000W V2 supported Codec?Is it a hardware problem? VoIP TroubleshootingCan P2000W V2 support STUN? If Ive confirmed it is an NAT problem. What should I do? How can I check if problem is cause by NAT or not?Unable to register with the SIP server? Can make a call but the voice only goes one way not bothway? Can register but can not establish a call?P2000W V2 Troubleshooting Guide P2000W V2 Troubleshooting Guide VoIP challenge P2000W V2 Troubleshooting Guide

P-2000W V2 specifications

ZyXEL Communications P-2000W V2 is a versatile and robust VoIP (Voice over Internet Protocol) device designed for residential and small office environments. This compact and user-friendly product provides a multitude of features, enabling seamless communication and connectivity solutions.

One of the main features of the P-2000W V2 is its support for both wired and wireless connections. The device integrates IEEE 802.11b/g wireless technology, allowing users to connect their devices to the network without the hassle of cables. This makes it especially beneficial in environments where cable management is challenging. Additionally, it includes multiple Ethernet ports for wired connections, catering to various networking devices such as computers and printers.

The P-2000W V2 is equipped with a highly efficient VoIP engine, supporting both SIP (Session Initiation Protocol) and H.323 protocols, which enables users to make high-quality voice calls over the internet. It supports up to two VoIP lines, making it ideal for small offices that require two separate lines for enhanced communication capabilities. Additionally, the device features advanced Quality of Service (QoS) technology to ensure that voice traffic is prioritized over other types of data, resulting in clearer calls and a better user experience.

Another notable aspect of the P-2000W V2 is its security features. The device comes with robust security protocols such as WPA/WPA2 for wireless connections and advanced firewall capabilities to protect against unauthorized access. This ensures that users can communicate and share data securely.

The interface of the P-2000W V2 is designed for ease of use. It features a simple web management portal that allows users to configure network settings, manage VoIP accounts, and monitor call quality with minimal technical knowledge. This user-friendly approach makes it accessible for both tech-savvy individuals and those who may not be as familiar with networking equipment.

In conclusion, the ZyXEL Communications P-2000W V2 stands out as a powerful VoIP solution that combines wireless and wired connectivity, advanced voice technologies, and strong security features in a compact design. Whether for home or small office use, its versatility and ease of use make it a preferred choice for efficient communication and reliable internet connectivity. With its impressive specifications, it continues to be a reliable option for users looking to enhance their telecommunication capabilities.
Top Page Image Contents