ZyXEL Communications P-2000W V2 manual What is VoIP?, Why use IP for voice?

Page 5

P2000W V2 Troubleshooting Guide

1. What is VoIP?

Voice over IP is an emerging technology based on open standards of IEEE, fundamentally the Internet Protocol that allows voice data to travel across the Internet. There are many methods to use this technology, the most common and well known are SIP, and H.323.

2. How does VoIP work?

Basically VoIP is a technique to send voice information in digital form in discrete packets over digital network rather than by using traditional circuit switch (PSTN). To do so we will need an analog to digital converter on sender side to translate the voice (analog signal) to digital than transmit it, and on the receiver end it will also need an analog to digital converter to covert the digital signal back to analog to the person being called can heard the voice.

3. Why use IP for voice?

Traditionally telephony carrier use circuit switching for carrying voice traffic. As circuit switching is designed to carry voice and it does it very well. Than why use IP for voice? As broadband booms, and technology evolve. People now want to communicate through various way not just voice such as email, instant messaging, video and so on. Traditional telephony can not evolve as quickly as the demand and develop new feature on circuit switch takes much time and money. IP is an already exist standard and many type of service already runs on IP, by using IP as a platform integrate service is now possible and low cost where traditional circuit may take long time to achieve.

4. What is the relationship between codec and VoIP?

In order to transfer voice (analog signal) over IP it first needs to be digitized. Codec is a technique to digitize analog signal to digital and vice versa. There are various speech codec available and can be used with VoIP each with its advantage and disadvantage.

5. What advantage does VoIP can provide?

The advantage of VoIP is it can provide advance services such as joining e- mail, instant messaging, video, voice mail all together. Where current circuit switching (PSTN) can not.

All contents copyright (c) 2005 ZyXEL Communications Corporation.

Page 4 Page 6
Image 5
Page 4 Page 6
Contents 2000W VoIP wireless phonePage Customer Support Frequently Asked Question IntroductionWhy use IP for voice? What is VoIP?What is the relationship between codec and VoIP? What advantage does VoIP can provide?What is voice quality? What is the difference between H.323 and SIP?Can H.323 and SIP interoperate with one another? What do I need in order to use SIP?What is the relation of codec and VoIP? What is codec?How do I reset the device to factory default? Which codec should I choose?Can P2000W V2 support outbound proxy? What is the P2000W V2 supported Codec?Can P2000W V2 support STUN? VoIP TroubleshootingIs it a hardware problem? Unable to register with the SIP server? How can I check if problem is cause by NAT or not?If Ive confirmed it is an NAT problem. What should I do? 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