Manuale d’uso / di manutenzione del prodotto P2000W V2 del fabbricante 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.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il ZyXEL Communications P2000W V2 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del ZyXEL Communications P2000W V2 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso ZyXEL Communications P2000W V2 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul ZyXEL Communications P2000W V2 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il ZyXEL Communications P2000W V2, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del ZyXEL Communications P2000W V2.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il ZyXEL Communications P2000W V2. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo ZyXEL Communications P2000W V2 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
