Manuale d’uso / di manutenzione del prodotto 1725-36038-001 del fabbricante Polycom
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January 2008 Edition 1725-36038-001 Version B SpectraLink 8020/8030 Wireless Telephone Administration Guide Session Initiation Protocol (SIP).
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 2 PN: 1725-36038-001_B.doc Trademark Information Polycom® and t he logo design s SpectraLink® LinkPlus Link NetLink SVP Are trademarks and registe red trademarks of Polycom, Inc.
PN: 1725-36038-001_B.doc 3 About this Guide This document explains how to configure and maintain the SpectraLink 8020/8030 Wireless Telephones with Session I nitiation Protocol (SIP); a protocol for the control of voice over IP (VoIP) calls via a proxy server(s).
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 4 PN: 1725-36038-001_B.doc Asterisk cmd VoiceMailMain (Shows how to enter the Asterisk voicemail system, its menu struct ure, and related information.) Available at http://www.voip- info.
PN: 1725-36038-001_B.doc 5 Contents 0 About this Guide ...................................................................... 3 Polycom Model Numbers ..................................................................3 Related Documents ...............
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 6 PN: 1725-36038-001_B.doc User-Defined Preferences ................................................................ 39 3 Software License and Protocol Ma nagement ...............
Contents PN: 1725-36038-001_B.doc 7 Download Failure or Recovery Messages ...............................86 11 Troublesh ooting ...................................................................... 87 Access Point Problems ...........................
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PN: 1725-36038-001_B.doc 9 SpectraLink 8020/8030 Wireless Telephone Overview The SpectraLink 8020/8030 Wireless Telephones are mobile handset s for workplace IP telephone system s. The handsets operate over an 802.11b wireless Ethernet LAN provid ing users a wireless voice over IP (VoIP) extension.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 10 PN: 1725-36038-001_B.doc encapsulated for prioritization as they are routed to and from a SIP proxy server. See the SpectraLink 8000 SVP Server Administration Guide for SIP document for detailed information about this device.
SpectraLink Wireless Telephone Overview PN: 1725-36038-001_B.doc 11 4. The SpectraLink 8000 SVP Server, which facilitates the QoS on the wireless LAN for the handsets, must be on the sa me subnet as the handsets and have the pr oper versions of software.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 12 PN: 1725-36038-001_B.doc System Diagram The following diagram shows the Polycom components residing on a network with APs and wireless LAN Ethernet Switch.
SpectraLink Wireless Telephone Overview PN: 1725-36038-001_B.doc 13 System Components SpectraLink 8020/8030 Wireless Telephone The SpectraLink 8020/8030 Wireless Telephone is a lightweight, durable handset specifically designed for mobile workplace use within a facility using SIP and an 802.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 14 PN: 1725-36038-001_B.doc Ethernet switch Interconnects multiple network de vices, including the SpectraLink 8000 SVP Server, the proxy server(s), wired IP phones and the APs.
SpectraLink Wireless Telephone Overview PN: 1725-36038-001_B.doc 15 TFTP server Required in the system to distribute software to the handsets. May be on a different subnet than the gateway, APs and/or hands ets. SIP TFTP server Required in the system to deliver SIP configuration parameters to the SIP handset whenever a SIP hand set is powered-up.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 16 PN: 1725-36038-001_B.doc SpectraLink 8020/8030 Wireless Telephone Specifications SpectraLink 8030 Wireless Telep hone Spectra.
SpectraLink Wireless Telephone Overview PN: 1725-36038-001_B.doc 17 Table of Specifications (802.11b, 802.11g) 2.4–2.4835 GHz Radio mode (selectable) (802.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 18 PN: 1725-36038-001_B.doc Startup Sequence The SpectraLink 8020/8030 Wireless Telephone goes through an initialization sequence at startup. The line icons 1-9 display and count down as the handset ste ps through this sequence.
SpectraLink Wireless Telephone Overview PN: 1725-36038-001_B.doc 19 During the last three steps of this process, the handset cont acts the SIP TFTP server and downloads general information about the prox y server(s), downloads specific information pertaining to the handset, registers with the proxy server(s), and verifies handset credentials.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 20 PN: 1725-36038-001_B.doc The active mode utilizes the most bandwidth and battery power. To conserve these resources, return the handset to the standby mode when a call is completed by pressing the END key.
PN: 1725-36038-001_B.doc 21 SpectraLink 8020/8030 Wireless Telephone Configuration Each handset may be configured for site-specific requirements by opening the Admin menu and selecting options or entering specific information. Any settings entered in the Admin menu must conform to system settings.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 22 PN: 1725-36038-001_B.doc If an admin password has been set, the display will require it s entry before opening the Admin menu. The default password is 123456. If no password is set, the display will proceed directly into the Admin menu.
SpectraLink Wireless Telepho ne Configuration PN: 1725-36038-001_B.doc 23 alphanumeric strings, the CAPS / caps softkey will appear and may be pressed to toggle the case. Enter letters by repeatedly pressing the corresponding key until the desired letter displays on the screen.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 24 PN: 1725-36038-001_B.doc Admin Menu 1 st level 2 nd level 3 rd level 4 th level 5 th level Phone Config Telephony Protocol *Type 036 Push-to-talk PTT Enable/*Disable Allowed Channels *Channel 1 *Channel 2 *….
SpectraLink Wireless Telepho ne Configuration PN: 1725-36038-001_B.doc 25 1 st level 2 nd level 3 rd level 4 th level 5 th level Network Config IP Addresses *Use DHCP Static IP Phone IP Default Gatewa.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 26 PN: 1725-36038-001_B.doc 1 st level 2 nd level 3 rd level 4 th level 5 th level Network Config Reg. Domain 01 02 03 04 05 06 07 Æ [802.11 Config] a Æ [ 802.11a] 5.150–5.250 5.
SpectraLink Wireless Telepho ne Configuration PN: 1725-36038-001_B.doc 27 1st level 2nd level 3rd level 4th level 5th level Diagnostics Run Site Survey Diagnostics Mode *Disable Enable Syslog Mode *Di.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 28 PN: 1725-36038-001_B.doc Daylight Savings The handset may be adjusted for daylight savings time. Password Enable/Disable/Change The password option controls access to the Admin menu.
SpectraLink Wireless Telepho ne Configuration PN: 1725-36038-001_B.doc 29 OAI Enable/Disable Polycom’s Open Application Interface (OAI) enables third-party computer applications to disp lay alphanumeric messages on the handset display and take input from the handse t keypad.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 30 PN: 1725-36038-001_B.doc To optimize battery life, the interval between sending out ELP updates will vary based on handset state. It is expected that ELP updates will occur at most every two to six seconds and at least every few minutes.
SpectraLink Wireless Telepho ne Configuration PN: 1725-36038-001_B.doc 31 must obtain a unique IP address for each handset from your network administrator. Default Gateway and Subnet Mask Used to identify subnets, when using a complex network, which includes routers.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 32 PN: 1725-36038-001_B.doc SVP Server IP The IP address of the Spec traLink 8000 SVP Server. If using Static IP configuration, this is simply the IP address of the SpectraLink 8000 SVP Server.
SpectraLink Wireless Telepho ne Configuration PN: 1725-36038-001_B.doc 33 Authentication Select either Open System or Shared Key . WEP Enable/Disable Select either Enable WEP or Disable WEP . Key Information Default Key Enter the key number specified for use by the handsets.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 34 PN: 1725-36038-001_B.doc Username Enter a username that matches an entry on the R adius server. Usernames are alphanumeric strings, and can be entered using the alphanumeric string entry technique.
SpectraLink Wireless Telepho ne Configuration PN: 1725-36038-001_B.doc 35 Use g only if all of your infrastructure devices use only 802.11g. The handsets will operate up to 54 mb/s in this mode. Use b & b/g mixed if some of your infrastructure components only understand 802.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 36 PN: 1725-36038-001_B.doc and 802.11 mode are listed. Navigate to the desi red level and press NavOK . This sets the transmit power level and exits the Regulatory Domain menus. The Network Setup menu will again display.
SpectraLink Wireless Telepho ne Configuration PN: 1725-36038-001_B.doc 37 Restore Defaults The Restore Defaults option will set all user and administrative parameters except Telephony Protocol to their factory defaults.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 38 PN: 1725-36038-001_B.doc Menu option Setting Sub-option Sub-sub-option Default Network Config IP Addresses Use DHCP SSID* [No.
SpectraLink Wireless Telepho ne Configuration PN: 1725-36038-001_B.doc 39 User-Defined Preferences The SpectraLink 8020/8030 Wireless Telephone features a configuration menu (“Config menu”) that is available to the user to configure user preferences and display handset information.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 40 PN: 1725-36038-001_B.doc Config menu 2 nd level 3 rd level 4 th level 5 th level 6 th level Noise Mode 1 Normal High Severe R.
SpectraLink Wireless Telepho ne Configuration PN: 1725-36038-001_B.doc 41 Config menu 2 nd level 3 rd level 4 th level 5 th level 6 th level Push-to-talk Default Channel Channel 1 ….
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PN: 1725-36038-001_B.doc 43 Software License and Protocol Management SpectraLink 8020/8030 Wireless Tele phones support a number of different IP protocol integrations .
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 44 PN: 1725-36038-001_B.doc Configuration Process 1. Download the latest SpectraLink 8020/8030 Wireless Telephone IP software from http://www.
Software License and Protocol Management PN: 1725-36038-001_B.doc 45 For future software upgrades, simply update the files that are stored on the TFTP server. Each time the handset is powered on, it will check with the TFTP server to ensure it has the proper software version.
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PN: 1725-36038-001_B.doc 47 SIP Integration Factors CODECs The SpectraLink 8020/8030 Wireless Telephones are compatible with the G.711µ-law and G.711a-law code cs.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 48 PN: 1725-36038-001_B.doc to automatically translate names into IP addresses for the TFTP server and SpectraLink 8000 SVP Server. In DHCP mode, the SIP handset will use DNS to look up an address for the logical name “siptftp” to locate the SIP TFTP file server.
PN: 1725-36038-001_B.doc 49 Programming the SIP Handset Features In order for the handset to function in the SIP environment, it downloads two files from the root directory of the SIP TFTP server during startup. The first file contains generic system information and is downloaded by every handset during the power-up sequence.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 50 PN: 1725-36038-001_B.doc • Generic file information should contain proxy server information and other SIP system data. • Specific file information should contain data specific to each user such as authentication creden tials and line appearance data.
Programming the SIP Handset Features PN: 1725-36038-001_B.doc 51 Proxy server commands Use the following parameters when programming the configuration files. See the sample configuration fi les following this table for more detailed information. Parameter Value Description Notes PROXYn_ADDR xxx.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 52 PN: 1725-36038-001_B.doc Parameter Value Description Notes PROXYn_PRACK enable disable Enables reliable provisional responses to INVITE requests n = 1, 2, 3 PROXYn _ MAIL_SUBSCR name@xxx.
Programming the SIP Handset Features PN: 1725-36038-001_B.doc 53 Parameter Value Description Notes LINEn username The dial # or name. All LINEn user names should be unique for a given LINEn_ PROXY.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 54 PN: 1725-36038-001_B.doc Sample Configuration Files Configuration files are illustrated belo w. These files are available as a download from the software update s site and may be customized for your application.
Programming the SIP Handset Features PN: 1725-36038-001_B.doc 55 # PROXYn_MA IL_NOTIFY is from wh om we migh t get unso licited mail center # notificat ions # This opti on is depr ecated and no longer needed in versions be yond # e/h340/i640 phones v108.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 56 PN: 1725-36038-001_B.doc Sample handset-specific file # Configura tion file format exa mple # Codec pre ference or der only. This does not enabl e/disable co decs. # (Optional ) can be G .
Programming the SIP Handset Features PN: 1725-36038-001_B.doc 57 #PROXY1_KEY PRESS_2833 controls gene ration of in-str eam RFC2833 fo rmatted key # press eve nts. Norma lly you wa nt this to be disabl ed for Aster isk but it # depends o n your con figuration and what you want t o be able to do.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 58 PN: 1725-36038-001_B.doc # Two lines may map t o the same extension to allow second incom ming calls .
PN: 1725-36038-001_B.doc 59 Using the SIP Handset The Handset Display When active, the handset screen will display either a call status screen or one of several menu screens. The call status screen has th e following format: This example shows two call tabs in dicating that two calls are in progress.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 60 PN: 1725-36038-001_B.doc Indicator Function Up and down arrows are di splayed when the menu ha s additional options above or below. Left or right arrows are displayed during editing when the cursor may be moved left or right.
Using the SIP Handset PN: 1725-36038-001_B.doc 61 NavOK functions The NavOK key acts as a fifth softkey with implicit functionality as follows: State NavOK key function Dialing Place phone call. Answering Answer a phone call Holding Resume audio. Displaying menu Select the highlighted menu option.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 62 PN: 1725-36038-001_B.doc Softkey Nam e Display ed during… Press to… Hold Hold In an active call. Place the call on hold. The line status shows when the call is on hold or when audio is flowing.
Using the SIP Handset PN: 1725-36038-001_B.doc 63 Menus Line menu The Line menu allows you to activate a call on a selected line or to view the status of lines. Pressing the LINE key from the active mode displays a menu of line appearances as programmed in the SIP TFTP configuration file.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 64 PN: 1725-36038-001_B.doc Key Number English Number + English Punctuation 7 7 p q r s 7 P Q R S 7 P Q R S p q r s [ ] 7 8 8 t u v 8 T U V 8 T U V t u v ‘ “ 8 9 9 w x y z 9 W X Y Z 9 W X Y Z w x y z ^ _ 9 0 0 @ - _ 0 = , < > 0 - _ [space] 0 * .
Using the SIP Handset PN: 1725-36038-001_B.doc 65 Handset Operation If you want to… Then… Turn the handset on Press and hold the END key until two chirps sound. Turn the handset off Press and hold the END key. One chirp will sound. If you are in a call, hang up first, then turn off the handset.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 66 PN: 1725-36038-001_B.doc If you want to… Then… Place a second call 1 To get a dial tone for the second call, pre ss LINE and NavOK . a. If the handset has multiple lines, press LINE + [the line numbe r].
Using the SIP Handset PN: 1725-36038-001_B.doc 67 If you want to… Then… Forward calls Calls may be forward ed on a per-line basis. The Line menu di splay will indicate if a line is forwarded by a > character followed by the destin ation address.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 68 PN: 1725-36038-001_B.doc If you want to… Then… Activate installed custom applications (registered OAI application on an OAI server) 1 Press START or Spkr . 2 Press FCN . 3 Navigate to the de sired custom applicati on using Nav cd key s or the More softkey.
Using the SIP Handset PN: 1725-36038-001_B.doc 69 If you want to… Then… Change the ring volume Press the up/down volume buttons on the side of the hand set during ringing, or while the handset is in standby mode. Adjust the speaker volume While speakerphone is a ctive, press the up/down volume buttons on the side of the handset during the call.
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PN: 1725-36038-001_B.doc 71 Testing a Handset Verify proper registration and operation of each handset b y performing the following tests on each handset in an active wireless area. 1. Power on the handset by pressing t he END key. A series of messages will be displayed as the h andset acquires the system.
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PN: 1725-36038-001_B.doc 73 Diagnostic Tools Run Site Survey , Diagnostics Enabled an d Syslog Mode are three d iagnostic tools provided to assist the wirele ss LAN administrator in evaluating the functioning of the SpectraLink 8020/8030 Wireless Telephone and the system surrounding it.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 74 PN: 1725-36038-001_B.doc Where: • 111111 – the last three oc tets of the on-air MAC address for a discovered AP. • 22 – the signal strength for the specified AP. • 33 – the channel number of the specified AP.
Diagnostic Tools PN: 1725-36038-001_B.doc 75 Where: • i – index of selected AP (value will be from 0 to 3 inclusive) • bbbbbb – the last three octets of the BSSID for a discovered AP • sn .
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 76 PN: 1725-36038-001_B.doc Diagnostics Enabled Diagnostics is used to evaluate the over all quality of the link between the handset, AP, and infr astructure side equipment, such as IP PBX, SpectraLink 8000 SVP Server, and gateways.
Diagnostic Tools PN: 1725-36038-001_B.doc 77 Screen 2 • Jitter – average error or “wobble” in received packet timing, in microseconds • Last successful transmit data rate (LastRate) • Gate.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 78 PN: 1725-36038-001_B.doc • Rate – one or more basic rates not supported • Full – AP can not handle bandwidth requirem.
Diagnostic Tools PN: 1725-36038-001_B.doc 79 Syslog Mode A syslog server must be present on the network in order for the handset to send the log messages a nd have them saved. The syslog server will be found with DHCP option 7 if the handset is using DHCP.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 80 PN: 1725-36038-001_B.doc All syslog messages will include: • Date and time (to 1/100th of second) since han dset power on (The handset time is set when it is powered on to Jan -1 00:00.
Diagnostic Tools PN: 1725-36038-001_B.doc 81 Audio stats AP MAC AP signal strength Payload size (in msec) Payloads sent Payloads received Payloads missed (not received) Payloads missed rate (over last.
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PN: 1725-36038-001_B.doc 83 Certifying the Handsets Prior to determining that an installation is complete, test the handsets following the sequence given in the previous Testing a Handset section and conduct a Site Survey mode test according to the directions given in the previous Diagnostic Tools section.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 84 PN: 1725-36038-001_B.doc 2. Then, walk the site again, in MyID / Smry ESSID mode, this time checking that every location has adequate coverage (there should be at least one AP stronger than -70 dBm in all a reas) and has good channel allocation.
PN: 1725-36038-001_B.doc 85 Software Maintenance The SpectraLink 8020/8030 Wireless Telephones use proprietary software programs written and maintained by Polycom Corporation. The software versions that are running on the handset s can be displayed during power on by holding down the END button.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 86 PN: 1725-36038-001_B.doc Message Description Updating Code Handset is downloading new software into memory. T he number icons at the bottom of the display indicate which f ile number is currently being downloade d.
PN: 1725-36038-001_B.doc 87 Troubleshooting On occasion, you may run into transmission problems due to any number of factors originating fr om the wireless LAN. SpectraLink 8020/8030 Wireless Telephones can ex hibit transmission problems in several ways.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 88 PN: 1725-36038-001_B.doc Transmission obstructions Prior to system installation, the best location for APs for optimum transmission coverage should have been determined.
Troubleshooting PN: 1725-36038-001_B.doc 89 Handset Status Messages SpectraLink 8020/8030 Wireless Telephone stat us messages provide information about the SpectraLink 8020/8030 Wireless Telephone’s communication with the AP and host telephone system.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 90 PN: 1725-36038-001_B.doc Message Description Action Bad Config Some needed configuration parameter has not been set. Check all required hand set configuration parameters for valid settings.
Troubleshooting PN: 1725-36038-001_B.doc 91 Message Description Action Checking DHCP IP The handset is retrieving DHCP information from the DHCP server. None. This is informational only. CRC Code Error The soft ware which has been TFTP downloaded has a bad red undancy code check.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 92 PN: 1725-36038-001_B.doc Message Description Action DL Not On Sector Handset software download files are incorrect or corrupted. Download new software from the Polycom website per Software Maintenance .
Troubleshooting PN: 1725-36038-001_B.doc 93 Message Description Action Multiple SVP Reg yyy.yyy.yyy.yyy y…y = SVP IP address Handset received responses from multiple SVP Servers; displays IP address of one responding SVP Server.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 94 PN: 1725-36038-001_B.doc Message Description Action Incorrect Security settings. Verify that all the Security settings in the handset match those in the APs. No Net Found xxxxxxxxxxxx yy x…x = AP MAC address .
Troubleshooting PN: 1725-36038-001_B.doc 95 Message Description Action No SVP Server No DNS IP Handset unable to perform DNS lookup for SVP Server, no IP address for DNS server. The network administrator must verify proper DHCP serve r operation. No SW Found A required software compo nent has not been identified.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 96 PN: 1725-36038-001_B.doc Message Description Action Service Rej. The SpectraLink 8000 SVP Server has rejected a request from the handset. The handset will restart and attempt to re-register with the Spectra Link 8000 SVP Server, which should fix the problem.
Troubleshooting PN: 1725-36038-001_B.doc 97 Message Description Action Updating Code… Handset is downloading new software into memory. The number icons at the bottom of the display indicate which file number is currently being downl oaded. This message also displ ays a progress bar.
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PN: 1725-36038-001_B.doc 99 Appendix A: Regulatory Domains This table details the specifications for regulatory domain settings. Polycom recommends that you check with local authorities for the latest status of their national regulations for both 2.4 and 5 GHz wireless LANs.
SpectraLink 8020/8030 Wireless Telephon e: Administration Guide for SIP 100 PN: 1725-36038-001_B.doc Domain Identifier 802.11 Mo de Band Channels DFS Required? Max. Power Limit (peak po wer) Countries g only b & b/g mixed 2.4000 – 2.4745 GHz 1 – 11 n/a 5.
PN: 1725-36038-001_B.doc 101 Index A Access point Coverage ........................................................... 75 Coverage test .................................................... 83 Access point, description .................................
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 Polycom 1725-36038-001 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 Polycom 1725-36038-001 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Polycom 1725-36038-001 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Polycom 1725-36038-001 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Polycom 1725-36038-001, 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 Polycom 1725-36038-001.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Polycom 1725-36038-001. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Polycom 1725-36038-001 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.