Instruction/ maintenance manual of the product P2000W V2 ZyXEL Communications
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P2000W V2 VoIP wireless phone Troubleshooting Guide May 2005.
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P2000W V2 Troubleshooting Guide Customer Support Please have the following information r eady when you contact customer support. • Product model and serial number. • Firmware version of your device. • Brief description of the problem a nd the steps you took to solve it.
P2000W V2 Troubleshooting Guide Introduction The Prestige P2000W V2 is a SIP-based Vo IP wireless phone. Sending voice signals over the Internet is called Voice over IP or VoIP. Session Initiated Protocol (SIP) is an internationally recognized standard for im plementing SIP.
P2000W V2 Troubleshooting Guide 1. What is VoI P? Voice over IP is an emerging t echnology based on open standards of IEEE, fundamentally the Internet Protocol that allows voice data to travel across t he Internet. T h e r e a r e m a n y methods to use this technology, the most common and well known are SIP, and H.
P2000W V2 Troubleshooting Guide 6. What is the differenc e between H.323 and SIP? H.323 and SIP are proposed by different group Session Initiation Protocol (SIP) is a standard introduced by t he Internet Engineering Task Force in 1999 to carry voice over IP.
P2000W V2 Troubleshooting Guide 10. How are voice quality normally rated? Voice quality is most commonly rated through a voice quality me tric called the Mean Opinion Score (MOS) which is recommendation by ITU-T. T h e MOS is a 5 point scale where 5 represent excellent voi ce quality and 1 represent bad v oice quality.
P2000W V2 Troubleshooting Guide 1. Power off the device. 2. Keep hold down the Power and Left-Selector button until you see <<Load Default>> <<Factory>> words in the LCD screen than release it. 3. Now all setting has been reset to default.
P2000W V2 Troubleshooting Guide 19. Can P2000W V2 support STUN? Yes, P2000W V2 can support STUN. VoIP Troubleshooting Is it a hardware problem? How can I check if problem is cause by NAT or not? If I've confirmed it is not an NAT.
P2000W V2 Troubleshooting Guide 2. How can I check if probl em is cause by NAT or not? ion. One of the best way to see if the problem is cause by NAT or not is to put P2000W V2 on publ ic n etwork, (With d NA T than very likely your NAT gateway is not supporting SIP pass-through.
P2000W V2 Troubleshooting Guide 5. I can register but can not establish a call? If you can register to server but can not make a call very like ly th er e is NAT rou te r be fo re r tips to troublesh oot. it, please see NAT related question above fo 6.
P2000W V2 Troubleshooting Guide 9. The support tells me, I may hav e an interoperability issue w ith my ITSP call server. Packet trace is requested by support to analyze the problem. How should I setup e environment and how do I trace the packet? to perform B ereal" to make the packet capture.
P2000W V2 Troubleshooting Guide 2. Connect the PC with packet sn iffer installed to the hub. 3. Start packet sniffing softwa re and start packet capturing. 4. Start P2000W V2 and make a complete call f rom registering to calling a party until problem appears.
P2000W V2 Troubleshooting Guide The corrected working capture should include starting of the ca ll (The SIP invite) to call pickup (The SIP ACK). An example of successful call capture is listed below for your reference. Once both of the above capture is completed, send both captured file to support to analysis the cause.
P2000W V2 Troubleshooting Guide and will soon run out. Thus NAT is very commonly used. Unfo rtunately from field test many vendor’s NAT are not SIP friendly. Fortunately, there are already ways to workaround the NAT for SIP. The most ommonly used way is listed below.
An important point after buying a device ZyXEL Communications P2000W V2 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought ZyXEL Communications P2000W V2 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data ZyXEL Communications P2000W V2 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, ZyXEL Communications P2000W V2 you will learn all the available features of the product, as well as information on its operation. The information that you get ZyXEL Communications P2000W V2 will certainly help you make a decision on the purchase.
If you already are a holder of ZyXEL Communications P2000W V2, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime ZyXEL Communications P2000W V2.
However, one of the most important roles played by the user manual is to help in solving problems with ZyXEL Communications P2000W V2. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device ZyXEL Communications P2000W V2 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
