Multi-Tech SystemsメーカーMVPGSM-2の使用説明書/サービス説明書
ページ先へ移動 of 94
MultiVOIP ® GSM SIP -t o-Cellular Gat e w a y s Model: MVPGSM-2 User Guide.
Multi-Tech Systems, Inc. MVPGSM 2 User Guide S000450A Wireless MultiVOIP GSM Unit (Model: MVPGSM-2) This publication may no t be reproduced, in whole or i n part, without prior expressed written permission from Multi-Tech Sy stem s, Inc. All rights reserved.
Multi-Tech Systems, Inc. MVPGSM 3 CONTENTS C HAPTER 1 – D ESCRIPTION AND S PECIFICATIONS ..................................................................................................... 4 Introduction ...........................................
Multi-Tech Systems, Inc. MVPGSM 4 Chapter 1 – Description and Specifications Introduction The MultiVOIP GSM provides wireless voice communications over the Internet or an Intranet. By integrating wireless connectivity into yo ur existing data network, yo u can realize substantial savi ngs on inter-office long distance toll charges.
Chapter 1: Description & Specifications Multi-Tech Systems, Inc. MVPGSM 5 Computer Requirements The computer on which the MVPGSM configuration pr ogram is installed must meet these requirements: • must be IBM-compati ble PC with MS Windows operating system; • must have an available COM port for co nnection to the MultiVOIP GS M.
Chapter 1: Description & Specifications Multi-Tech Systems, Inc. MVPGSM 6 PTCRB Requirements Note There cannot be any alteration to the authorized ante nna system. The antenna system must be the same type with similar in-band and out-of-b an radiation patterns and main tain the same specifica tions.
Multi-Tech Systems, Inc. MVPGSM 7 Chapter 2 – Installation and Activation Introduction The MultiVOIP GSM is equally usable as table top unit or mounted i n a location with good reception. The initial setup is best performed before any mo unting is done.
Chapter 2: Installation & Activation Multi-Tech Systems, Inc. MVPGSM 8 Mounting Instructions When not used as a tabletop device, the botto m panel of the MVPGSM has six keyed slots for versatility of mounting. The dimensions (in inches) provided below allow for placeme nt nearly anywhere.
Chapter 2: Installation & Activation Multi-Tech Systems, Inc. MVPGSM 9 Cabling Procedure Cabling involves connecting th e MultiVOIP GSM to yo ur LAN and telephone equipme nt. 1. Connect a power cord to the transformer and to a liv e AC outlet, and then atta ch the barrel connector to the back of the MultiVOIP GS M as shown in the figure below .
Chapter 2: Installation & Activation Multi-Tech Systems, Inc. MVPGSM 10 GSM Instructions Step 1 – Activate Your Wireless Account Select a wireless network provider and follow their dire ctions to activate your a ccount and receive your S IM cards.
Multi-Tech Systems, Inc. MVPGSM 11 Chapter 3 – Software Installation Introduction Configuring software for your MultiVOIP GS M entails three tasks: Loading the software onto the PC (t his is “Softwar e Installation” and is dis cussed in this chapter).
Chapter 3: Software Installation Multi-Tech Systems, Inc. MVPGSM 12 Installation wizard screen Press Enter or clic k Next to continue. 4. Follow the on-screen instructions to install your MultiVOIP GSM softwa re. The first screen asks you to choose the destination for the MultiV OIP GSM software.
Chapter 3: Software Installation Multi-Tech Systems, Inc. MVPGSM 13 6. On the next screen you can select the COM port that the command PC will us e when communicating with the MultiVOIP GSM unit.
Chapter 3: Software Installation Multi-Tech Systems, Inc. MVPGSM 14 Setup Overview With the software now installed, you are ready to get your MultiVOIP GSM set up an d working. There are a few necessary settings that need to be entered in the confi guration software to achieve this and they are no ted in the action lists for the categories below.
Chapter 3: Software Installation Multi-Tech Systems, Inc. MVPGSM 15 Ethernet/IP A unique LAN IP address is required for the MultiVOIP GS M unit as well as a subnet mask and Gateway IP for minimal functionality. Oth er settings in this category pert ain to specific feature s and protocols that can b e used, but are not necessary for basic operation.
Chapter 3: Software Installation Multi-Tech Systems, Inc. MVPGSM 16 Voice The individual channels must be set up before use. The Copy Channel b utton can save a lot of time during this step if channels are to be set with the same parameters.
Chapter 3: Software Installation Multi-Tech Systems, Inc. MVPGSM 17 Actions: • Select Channel o Choose channel parameters: Fax and modem parameters are not available at this time Modem Relay.
Chapter 3: Software Installation Multi-Tech Systems, Inc. MVPGSM 18 Wireless Interface The Wireless Interface Parameters are the settings for the GSM co nnection. The Copy Channel button can save a lot of time during this step if channels are to be set with the same parameters.
Chapter 3: Software Installation Multi-Tech Systems, Inc. MVPGSM 19 Actions: • Select Channel o Channel 1 or 2 • Disable Interface o Check box: Enable or Disable Interface • Use Module for DTMF .
Chapter 3: Software Installation Multi-Tech Systems, Inc. MVPGSM 20 Call Signaling The MultiVOIP GS M utilizes the SIP protocol for communi cati on with other V OIP units.
Chapter 3: Software Installation Multi-Tech Systems, Inc. MVPGSM 21 Regional Select the country or r egion that the MultiVOIP GSM unit will operate in, or use the custom option if the available settings are not adequate.
Chapter 3: Software Installation Multi-Tech Systems, Inc. MVPGSM 22 Phone Book Without a populated phone book, the VOIP unit is unable to translate call traffic. You will nee d the information for both a local and any remote sites that are to be us ed.
Chapter 3: Software Installation Multi-Tech Systems, Inc. MVPGSM 23 Actions: • Select Outbound Phone Book o Select Add Entry o Accept Any Number: may be selected to allow any phone number from the w.
Multi-Tech Systems, Inc. MVPGSM 24 Chapter 4 – Configuring Your MultiVOIP GSM Introduction There are two methods of configuring y our MultiVOIP GSM; one is through a web interface, and the other is through the Windows software interface.
Chapter 4: Configuring your MVPGSM Multi-Tech Systems, Inc. MVPGSM 25 How to Navigate Through the Software The MultiVOIP GS M software is launch ed from the Start button a nd is found in the All Programs area under the title of MultiVOIP GSM x.xx (w here x represents vers ion number).
Chapter 4: Configuring your MVPGSM Multi-Tech Systems, Inc. MVPGSM 26 Ethernet/IP This section covers the Ethernet settings needed for the MultiVOI P GSM unit. In each field, enter the values tha t fit the network to which the MultiVOIP GSM will be conne cted to.
Chapter 4: Configuring your MVPGSM Multi-Tech Systems, Inc. MVPGSM 27 Ethern et/IP Para meter Defin itions Field Name Values Description Ethernet Parameters Packet Prioritization (802.1p) Y/N Select to activate prioritization under 802.1p proto col (described below).
Chapter 4: Configuring your MVPGSM Multi-Tech Systems, Inc. MVPGSM 28 Ethernet/IP Par ameter Definitions (continued) Field Name Values Descripti on Dif f Serv Parameter fields Diff Serv PHB (Per Hop Behav ior) values pertain to a differential prioritizing system for IP packets as handled by Diff Serv-com patible routers.
Chapter 4: Configuring your MVPGSM Multi-Tech Systems, Inc. MVPGSM 29 Voice/Fax Setting the Vo ice Parameters. The Voice/Fax section needs to be set for each channel to be used.
Chapter 4: Configuring your MVPGSM Multi-Tech Systems, Inc. MVPGSM 30 Voice/Fax Parameter Definitions Field Name Values Description Default -- When this button is clicked, al l Vo ice/FAX parameters are set to t heir default values. Select Channel 1-2 Channel to be confi gured is selected here.
Chapter 4: Configuring your MVPGSM Multi-Tech Systems, Inc. MVPGSM 31 Voice/Fax Parameter Definitions (con tinued) Coder Parameters Coder Manual or Automatic Determines whether selection of coder is manual or automatic.
Chapter 4: Configuring your MVPGSM Multi-Tech Systems, Inc. MVPGSM 32 Voice/Fax Parameter Definitions (con tinued) Field Name Values Description AutoCall/Offhook Alert Parameters Auto Call / Offhook A.
Chapter 4: Configuring your MVPGSM Multi-Tech Systems, Inc. MVPGSM 33 Configurable Payload Type The Configurable Payload Type is locate d on the bottom of th e Voice/Fax screen. The Config urable Payload Type is used when the remote side uses a diffe rent payload type for the associated fea tures.
Chapter 4: Configuring your MVPGSM Multi-Tech Systems, Inc. MVPGSM 34 Wireless Interface parameter definitions Field Name Values Description Select Channel 1 – 2 Select which channel you wa nt to set parameters for. Disable Interface Check box Enab le or Disable the interface.
Chapter 4: Configuring your MVPGSM Multi-Tech Systems, Inc. MVPGSM 35 Call Signaling The MultiVOIP GSM uses SIP call signaling. SIP Session Initiation Protocol is the only option available for appli cation layer control of the MultiVOIP GSM. The fields are detailed in the table below.
Chapter 4: Configuring your MVPGSM Multi-Tech Systems, Inc. MVPGSM 36 SIP Call Signaling Parameter Definitions Field Name Values Description SIP Parameters Signaling Port port Port number on which the MultiVOIP GSM UserAgent software module will be waiting for any incoming SIP requests.
Chapter 4: Configuring your MVPGSM Multi-Tech Systems, Inc. MVPGSM 37 Regional The Regional Parameters are used to set the phone si gnaling tones and cadences.
Chapter 4: Configuring your MVPGSM Multi-Tech Systems, Inc. MVPGSM 38 “Regional Parameter” Definitions Field Name Values Description Country/Region USA, Japan, UK, Custom Name of a country or regi.
Chapter 4: Configuring your MVPGSM Multi-Tech Systems, Inc. MVPGSM 39 Setting Custom Tones and Cadences (optional). The Regional Parameters dialog box has a secondary dialog box that allows you to cus.
Chapter 4: Configuring your MVPGSM Multi-Tech Systems, Inc. MVPGSM 40 SMTP Setting the SMTP Parameters (Log Reports by Email). The SMTP Parameters screen is applicable whe n the VOIP administrator has.
Chapter 4: Configuring your MVPGSM Multi-Tech Systems, Inc. MVPGSM 41 “SMTP Parameters” Defi nitions Field Name Values Description Enable SMTP Y/N In order to send log reports by email, this bo x must be checked. However, to enable SMTP function ality, you must also select “SMTP” in the Logs screen.
Chapter 4: Configuring your MVPGSM Multi-Tech Systems, Inc. MVPGSM 42 The SMTP Parameters dialog box has a secondary dialog box, accessed by the Select Fields button, that allows you to customize email logging. The MultiVOIP GSM softwa re logs data about many aspects of the call tr affic going through the Mul tiVOIP GSM.
Chapter 4: Configuring your MVPGSM Multi-Tech Systems, Inc. MVPGSM 43 RADIUS In general, RADIUS is con cerned with authe ntication , authorizatio n, and accounting. The MultiVOIP GSM supports the accounting and au thentication functions. The accountin g function is well suited for billing of VOIP telephony services.
Chapter 4: Configuring your MVPGSM Multi-Tech Systems, Inc. MVPGSM 44 The fields of the RADIUS screen are described in the table below. RADIUS Screen Field Defi nitions Field Name Values Description Enable Accounting Y/N When ch ecked, the MultiVOIP GSM will access the accounting functionality of the RADIUS server.
Chapter 4: Configuring your MVPGSM Multi-Tech Systems, Inc. MVPGSM 45 Logs/Traces The Logs/Traces screen lets you choose how the VOIP ad minis trator will receive log reports about the MultiVOIP GSM’s performance and the phon e call traffic that is passi ng throu gh it.
Chapter 4: Configuring your MVPGSM Multi-Tech Systems, Inc. MVPGSM 46 If you enable console messages, you can customize the ty pes of me ssages to be included/excluded in log re ports by clicking on the Filters button and usi ng the Console Mess ages Filter Settings screen.
Chapter 4: Configuring your MVPGSM Multi-Tech Systems, Inc. MVPGSM 47 NAT Traversal Setting the NAT (Network Address Translation) Traversal parameters. STUN (Si mple Traversal of UDP through NATs) is a protocol for assisting devices behind a NA T firewall or router with their packet routing.
Chapter 4: Configuring your MVPGSM Multi-Tech Systems, Inc. MVPGSM 48 Supplementary Services Supplementary Services features derive from the H.450 standard, - even though the H.450 standard ref ers only to H.323, Supplementary Services are still applicable to the SIP VOIP protocols.
Chapter 4: Configuring your MVPGSM Multi-Tech Systems, Inc. MVPGSM 49 Supplementary Services Parameter Def initions Field Name Values Description Select Channel 1-2 The channel to be confi gured is selected her e. Call Transfer Enable Y/N Select to enable the Call Transfer function in the VOIP unit.
Chapter 4: Configuring your MVPGSM Multi-Tech Systems, Inc. MVPGSM 50 Save Settings Save & Reboot Saving the MultiVOIP GSM Configuratio n. When values have been set for all of the various operating parameters, click on Sav e Setu p in the sidebar, then Save & Reboot .
Chapter 4: Configuring your MVPGSM Multi-Tech Systems, Inc. MVPGSM 51 Troubleshooting Software Issues In the lower left corner of the s creen, the connection status of the MultiVOIP GSM will be displayed. The messages in the lower left corner w ill change as dete ction occurs.
Multi-Tech Systems, Inc. MVPGSM 52 Chapter 5 – Phone Book Configuration Introduction The wireless connectivity of the MVPGSM provides the cost-savings of wireless -to-wireless connections and inexpensive long distance to an existing location.
Chapter 5: Phonebook Configuration Multi-Tech Systems, Inc. MVPGSM 53 Sample Configurations ¾ MVPGSM-to-MVPGSM ¾ MVPGSM as a Stand Alone Unit ¾ Analog VOIP and MVPGSM ¾ Load Balancing General Notes Suppose you want to call a phone number outside of your build ing using a phone station that is an e xtension from your PBX system (if present).
Chapter 5: Phonebook Configuration Multi-Tech Systems, Inc. MVPGSM 54 Example 3: Your company has an IP PBX system with an analog VOIP unit for l ocal calls and direct calls to the office in another city and an MVPGSM that will hand le all long distance calls .
Chapter 5: Phonebook Configuration Multi-Tech Systems, Inc. MVPGSM 55 Example Outbound Phone Books The Outbound Phone Book is the director of where calls will be routed – whether that is to a specif.
Chapter 5: Phonebook Configuration Multi-Tech Systems, Inc. MVPGSM 56 Phone Book Descriptions Outbound Phone Book/List Entries Fields in the “Details” section that are gr ayed out are not used by the SIP protocol.
Chapter 5: Phonebook Configuration Multi-Tech Systems, Inc. MVPGSM 57 Add/Edit Outbou nd Phone Book Add/Edit screen Enter Outbound Phone Book data for y our MultiVOIP GSM unit. Note that the Advanced bu tton gives access to the Alternate IP Routing feature, if needed.
Chapter 5: Phonebook Configuration Multi-Tech Systems, Inc. MVPGSM 58 Add/Edit Outbou nd Phone Book : Field Definitions Field Name Values Description Accept Any Number Y/N When ch ecked, “A ny Number” a ppe ars as the value in the Destination Pattern field.
Chapter 5: Phonebook Configuration Multi-Tech Systems, Inc. MVPGSM 59 Clicking on the Advanced button brings up the Alternate Routing secondary scr een. This feature provides an alternate path for calls if the primary IP network cannot or does no t respond within the time frame of the Round Trip Delay.
Chapter 5: Phonebook Configuration Multi-Tech Systems, Inc. MVPGSM 60 Inbound Phone Book/List Entries The “Details” and “Registration Options” sections will display information based on the setup and protocols chosen.
Chapter 5: Phonebook Configuration Multi-Tech Systems, Inc. MVPGSM 61 Add/Edit Inbound Ph one Book Add/Edit Inboun d Phone Book.
Chapter 5: Phonebook Configuration Multi-Tech Systems, Inc. MVPGSM 62 Enter Inbound Phone Boo k data for your MultiVOIP GSM. The fie lds of the Add/Edit Inbound Phone Book screen are described in the table below.
Chapter 5: Phonebook Configuration Multi-Tech Systems, Inc. MVPGSM 63 Authorized User Name and Password for SIP To enable the Registration Options on the Add/Ed it Inbound Phon e Book, you have to activate Use SIP Proxy Option on the Call Signaling, SIP Parameters Screen.
Multi-Tech Systems, Inc. MVPGSM 64 Chapter 6 – Using the Software Introduction This chapter will primarily cover the day to day oper ation and maintenance sections of the MultiVOIP GSM software. How to update the firmware and software are also covered here should either be needed.
Chapter 6: Using the Software Multi-Tech Systems, Inc. MVPGSM 65 System Information screen This screen presents system informat ion at a glan ce. It is found under the Configuration se ction and its primary use is in troubleshooting.
Chapter 6: Using the Software Multi-Tech Systems, Inc. MVPGSM 66 Statistics Section Ongoing operation of the MVPGSM, whether it is in a MVPGSM/PBX setting or MVPG SM/tel co-office setting, can be monitored for performance usin g the Statistics f unctions of the MVPGSM soft ware.
Chapter 6: Using the Software Multi-Tech Systems, Inc. MVPGSM 67 Call Progress Details: Field Definitions Field Name Values Description Channel 1-n This is the channel for whic h call-progress details are being viewed. Call Details Duration H/M/S The length of the call in hours , minutes, and seconds (hh:mm:ss).
Chapter 6: Using the Software Multi-Tech Systems, Inc. MVPGSM 68 Call Progress Details: Field Definitions (continued) Field Name Values Description Supplementary Services Status Call on Hold alphanumeric Describes held call by it s IP address source, location/gateway identifier, and hold duration.
Chapter 6: Using the Software Multi-Tech Systems, Inc. MVPGSM 69 Logs Log statistics screen The table below describes the fields of the Logs scree n..
Chapter 6: Using the Software Multi-Tech Systems, Inc. MVPGSM 70 Logs Screen Details: Fi eld Definitions Field Name Values Descripti on Log # column 1 or higher All calls are assigned an event number in chr onological order, with the most recent call having the highest event number.
Chapter 6: Using the Software Multi-Tech Systems, Inc. MVPGSM 71 IP Statistics IP statistics screen UDP versus TCP . (User Datagram Protocol versus Transmission Control Protocol). UDP provides unguaranteed, connectionless transmission of data across an IP network.
Chapter 6: Using the Software Multi-Tech Systems, Inc. MVPGSM 72 IP Statistics: Field Definitions Field Name Values Description IP Address n.n.n.n IP address of the MultiVOIP GSM. For an IP address to be displa yed here, the MultiVOIP GSM must have DHCP enabled.
Chapter 6: Using the Software Multi-Tech Systems, Inc. MVPGSM 73 Link Management The Link Management scr een is essentially an automa ted utility for pinging e ndpoints on your VOIP networ k. This utility generates pings of variable sizes at varia ble intervals and records the response to the pings.
Chapter 6: Using the Software Multi-Tech Systems, Inc. MVPGSM 74 Servers SIP Proxies This window lists all the SIP proxy servers configured and the active server with which the system is registered. SIP proxies SIP Proxies (Statistics, Se rvers): Fiel d Definitions Field Name Values Description Column Headings IP Address n.
Chapter 6: Using the Software Multi-Tech Systems, Inc. MVPGSM 75 Advanced Packetization Time You can use the Packetization Tim e screen to specify definite pa cketization rates for coders selected in the Voice/FAX Parameters screen (i n the “Coder Options” group of fields).
Chapter 6: Using the Software Multi-Tech Systems, Inc. MVPGSM 76 MultiVOIP GSM Program Menu Items After the MultiVOIP GSM program is installe d on the PC, it can be la unched from the Pr ograms group of the Windows Start menu ( Start | Programs | MultiVOIP GSM x.
Chapter 6: Using the Software Multi-Tech Systems, Inc. MVPGSM 77 Setting and Downloading User Defaults The Download User Defaults command allows you to maintain a known wo rking confi guration that is specific to your VOIP system.
Chapter 6: Using the Software Multi-Tech Systems, Inc. MVPGSM 78 Setting a Password Windows Interface After a user name has been desig nated and a passwor d has been set, that password is requi red to gain access to any functionality of the MultiVOIP GSM so ftware.
Chapter 6: Using the Software Multi-Tech Systems, Inc. MVPGSM 79 Password verification When the MVPGSM program asks for the password at launch of program, if CANCEL is sel ected, the program will simply shut down. The MVPGSM program will produce a n error messa ge if an invalid password is entered.
Chapter 6: Using the Software Multi-Tech Systems, Inc. MVPGSM 80 Upgrading Software As noted earlier, the Upgrade Software command transf ers from the controller PC to the MultiVOIP GSM unit. The settings can be either Factory Defa ult Settings or Current Configuration Settings.
Chapter 6: Using the Software Multi-Tech Systems, Inc. MVPGSM 81 FTP Server File Transfers (“Downloads”) Multi-Tech has built an FTP server into the MultiVOIP GSM unit. Therefore, file transfers from the contro ller PC to the VOIP unit can be done using an FTP client prog ram or even using a browser (e .
Chapter 6: Using the Software Multi-Tech Systems, Inc. MVPGSM 82 3. Install FTP Client Progr am or Use Substitute . You should install an FTP client program on the controller PC. FTP file transfers can be done using a we b browse r (e.g., Fir efox or Internet Explorer) in conjunction with a local Windows browser a (e .
Chapter 6: Using the Software Multi-Tech Systems, Inc. MVPGSM 83 6. Contact MultiVOIP GSM FTP Server . You must make con tact with the FTP Server in the VOIP using either a web browser or FTP client program. Enter the IP address of th e MultiVOIP GSM’s FTP Serv er.
Chapter 6: Using the Software Multi-Tech Systems, Inc. MVPGSM 84 Download with FTP Client Program: • In the local directory browser of the FTP client prog ram, locate the directory holding the MultiVOIP GSM program files.
Chapter 6: Using the Software Multi-Tech Systems, Inc. MVPGSM 85 Web Browser Interface Web interface main page You can control the MultiVOIP GSM unit with a graphic user interface (in terface) based on the com mon web browser platform. Qualifying browsers are Internet Explorer 6+, Netscape 6+, and Mozilla Firefox 1.
Chapter 6: Using the Software Multi-Tech Systems, Inc. MVPGSM 86 The Windows interface gives access to commands via icons and pull-down menus whereas the web interface does not. The web interfac e, however, cannot perform logging in the same direct mode done in the Windows interface.
Chapter 6: Using the Software Multi-Tech Systems, Inc. MVPGSM 87 Browser choice When installation is complete, the Java program runs automatically in the backgr ound as a plug-in supporting the MultiVOIP GS M web interface. No user actions are required.
Chapter 6: Using the Software Multi-Tech Systems, Inc. MVPGSM 88 SysLog Server Functions Multi-Tech has built SysLog server fu nctionality into the software of the MultiVOIP GSM units. SysLog is a de facto standard for logging events in network communication syste ms.
Multi-Tech Systems, Inc. MVPGSM 89 Appendix A – Cable Pin-outs & Ports Command Cable RJ-45 Connector End-to-End Pin Info RJ-45 connector plugs into Command Port of MultiVOIP GSM. DB-9 connector plugs into serial port of comma nd PC (which runs MultiVOIP GS M configuration software).
Multi-Tech Systems, Inc. MVPGSM 90 Appendix B – Regulatory Information EMC, Safety, and R&TTE Directive Compliance The CE mark is affixed to this pro duct to confirm compliance with the follo wi.
Appendix C: Regulatory Information Multi-Tech Systems, Inc. MVPGSM 91 Industry Canada This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipm ent Regulations. Cet appareil numérique d e la classe A respecte toutes les exigences du Reglement Canadien sur l e matériel brouilleur.
Multi-Tech Systems, Inc. MVPGSM 92 Appendix C – Waste Electrical and Electronic Equipment (WEEE) Statement July, 2005 The WEEE directive places an obligat ion on EU-based manufacturers, distributors, retailers and importers to take-back electronics products a t the end of their useful life.
Multi-Tech Systems, Inc. MVPGSM 93 Appendix D – C-ROHS HT/TS Substance Concentration 依照中国标准的有毒有害物质信 息 根据中华人民共和国信息产业部 (MII) 制定的电子.
Multi-Tech Systems, Inc. MVPGSM 94 INDEX Auto Disc onnect ....................................................................... 32 AutoCall/Offh ook ..................................................................... 32 Cabling ...................
デバイスMulti-Tech Systems MVPGSM-2の購入後に（又は購入する前であっても）重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります：
Multi-Tech Systems MVPGSM-2をまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはMulti-Tech Systems MVPGSM-2の技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。Multi-Tech Systems MVPGSM-2の取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。Multi-Tech Systems MVPGSM-2で得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
Multi-Tech Systems MVPGSM-2を既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はMulti-Tech Systems MVPGSM-2の不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、Multi-Tech Systems MVPGSM-2に関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちMulti-Tech Systems MVPGSM-2デバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。
