Manuel d'utilisation / d'entretien du produit 308 du fabricant NEC
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Multibutton T elephone Feature Handbook P/N 82400MFH04 April 2001 Printed in U.S.A. 82400mfh05CVR.QXD 3/30/01 9:26 AM Page 2.
This manual has been developed by NEC America. It is intended for the use of its customers and service personnel, and should be read in its entirety before attempting to install or program the system. Any comments or suggestions for improving this manual would be appreci- ated.
Using Y our T elephone .....................................................1 Calling a Co-W orker . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Outside Calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Handling And Rerouting Y our Calls .
Microphone Mute..........................................................45 Name/Message Storing..................................................46 Night Answer (Off-Hours Ringing) ................................49 Off-Hook Signaling ...............
Using Y our T elephone Y our telephone's Alphanumeric Display helps you use features and tells you about your calls. For example, you can see the name of a co- worker who calls you. (Y ou may also be able to change the time and date on your phone if it's not correct.
Calling a Co-W orker Y ou can dial a co-worker on the Intercom (page 39), or use Paging (page 58) if you don't know where they are. V isitors at your entrance door can call you on the Intercom using a Door Box (page 31). Outside Calls Y ou can Answer Outside Calls that ring your phone or flash your line keys (page 52).
Handling And Rerouting Y our Calls Use Hold (page 36) to have your call wait at your phone. Or , if your system is a Portrait 824, Park it in orbit for a co-worker (page 14). Have a call for a co-worker? T ransfer it to them (page 79). When you leave your desk, think about Call Forwarding your calls to someone else (page 1 1).
There's no need to keep redialing your outside call if it's busy or unan- swered - use Repeat Dial instead (page 62 ). And when your system's lines are busy , Line Queuing (page 53) lets you wait for a free one. W ith Selectable Display Messages , send a message to your busy co- worker's display phone (page 65).
When Y ou W ork In Groups If you and your co-workers handle each other's calls, you might want to have Extension Hunt Groups (page 33). Someone calling your group's number goes through to the first available extension. If there is no answer at that exten- sion, a co-worker can try the next extension in line using Step Calling (page 76).
Have a T elephone Meeting Conference (page 23) allows you to quickly set up a telephone meeting. Use Meet Me Conference (page 41) to set up a meeting which lets others join if they choose. Optionally , you can also use Meet Me Page to set up a meeting on a page zone.
extension can make a voice announced Intercom call over the speaker of both 'executive' extensions. The users at the executive extensions can reply Handsfree and all three parties can talk. T ired of always reaching for the handset or cradling it under your chin while you type? Install a headset and enable Headset Operation (page 36).
Y our Multibutton Phone Volume/Contrast Control 82400 - 1 1 1 7 7 2 2 8 8 3 3 9 9 4 4 10 10 5 5 11 LND FTR 6 6 12 CHECK CLEAR Q_Z PRS GHI ABC Clear Check Line keys One-touch keys Feature Last Number D.
Account Codes Account Codes are codes you enter that help keep track of outside calls. There are two types of Account Codes: Optional and Forced. W ith optional codes, the Account Codes you enter are solely for cate- gorizing your calls.
1 . Press . 2. Press . ● If pr ogrammed as a One-T ouch key , pr ess the One-T ouch key instead. 3. Dial to set the first alarm or dial to set the second alarm. 4. Dial time in terms of a 24-hour clock. ● For example, dial 1545 for 3:45 PM. 5. Dial .
1. Press . 2. Press . ● If pr ogrammed as a One-T ouch key , pr ess the One-T ouch key instead. 3. Dial to cancel the first alarm or dial to cancel the second alarm.
● 2 = Call Forward When Unanswer ed Forwarded only if the call is unanswered. ● 3 = Call Forward When Busy / Unanswer ed Forwarded only when the extension is busy or unanswered. Call Forwarding will reroute all calls, including calls transferred from another extension.
● 3 = Call Forward When Busy / Unanswered - Forwarded only when the extension is busy or unanswer ed. - Listen for: one short beep as confirma- tion of pr ocedure or one long beep indicating call cannot be forwar ded to that extension. - Note: If no code is entered, all calls forwar d immediately to the destination extension.
Call Parking (Portait 824 Only) Call Parking allows you to place an outside call in a waiting state (called a Park orbit) so that any other keyset extension within the same Park group may pick it up. After parking the call, you can Page the person receiving the call and hang up.
while on a call. Y ou can also time Intercom calls or use the idle tele- phone as a stopwatch. 1. Press to start timing. 2. Press again to stop timing. 3. Press to return to the date and time. Call W aiting (Camp On) After you call a busy extension, use Call W aiting to wait in line (i.
Caller ID Caller ID allows a display keyset to show an incoming caller ’ s tele- phone number and/or name with the time and date on the phone’ s display . The caller ’ s information can be checked before answering an incoming call. The information received by the system depends upon the capabilities of your local telco.
T emporary Memory When a call is abandoned or the Caller ID table is full, the caller ’ s information will be stored in the T emporary Memory (up to 24 Caller ID names and numbers). If the T emporary Memory is full, the oldest Caller ID information will automatically be deleted and the new infor- mation will be stored in it’ s place.
1. Answer call. 2. Press and dial . ● If a confirmation tone (one short beep) is hear d, the information was success- fully stor ed in the next empty memory bin in the Caller ID T able. If an err or tone (thr ee short beeps) is heard: - the system does not allow the extension to edit the table (Pr ogram 61 [C.
1. Press key . 2. Dial . 3. Dial bin number (001-100). 4. Press . 5. Press . 6. Press . 7. Press . 1. Press . 2. Dial . 3. Dial bin number (001-100). 4. Press . ● Dialing out fr om a stored number may not work with all central offices. The number stor ed in the bin may have to be edited (e.
1. Press . 2. Dial . 3. Dial the digits of the phone number to be searched (up to 10 digits max.). 4. Press . The first name and number is displayed. ● Pr ess (forward) or (back- war ds) to scroll. 5. T o call the displayed number, press . OR T o edit the information, press + follow the editing instructions explained previously .
● If needed, scr oll by pressing (forwar d) or (backwar ds). 5. T o call the displayed number, press . OR T o edit the information, press + follow the editing instructions explained previously . OR T o delete the information: Press + . 1. Press . 2.
1. Press . 2. Dial . 3. Press . 4. Press . ● The information will be stor ed in the next available bin. Callback When you call a busy extension, you can leave a Callback request for a return call. Y ou do not have to repeatedly call the busy extension back, hoping to find it idle.
The signal is a quick double ring. 1. ● Extension is called. 1. Lift handset to cancel Callback before receiving the Callback signal. 2. Conference Conference lets you add additional inside and outside callers to your conversation. W ith Conference, you can set up a multiple-party tele- phone meeting without leaving the office.
Method 2 1. Establish an outside call. 2. Press . 3. Press and call the other extension by paging and announce the CO line key number . ● The called party must pr ess the CO line key to join.
Direct Station Selection Console, DSS (Portrait 824 only) If you do a lot of call processing (like an operator or dispatcher), you may have a Direct Station Selection (DSS) Console. The DSS Console gives you a Busy Lamp Field (BLF) and one-button access to exten- sions and certain system features.
1. While on a CO call, press a DSS key . ● The CO call is put on Hold and a call is placed to the desir ed extension. 2. Press . ● Called extension rings. 1. While on a CO call, press one of the DSS keys. ● CO call is put on hold and a call is placed to the desir ed extension.
1. 2. Press . 3. Dial . 4. Press One-T ouch key . 5. Dial extension number . OR T o program a Page Zone, dial 80-87 (86 and 87 can only be assigned as DSS keys on the Portrait 824 system). OR T o program a Door Box, dial 88 or 89. 6. 1. ● If Single Step Access is pr ogrammed and the phone is equipped with a speakerphone, this step can be skipped.
Directed Call Pickup Use Directed Call Pickup when you need to answer a call ringing another extension without leaving your phone. This lets you easily cover a co-worker's calls when they have to be away from their desk. 1. ● Do not pr ess . 2.
Directory Dialing If you have a display phone, Directory Dialing lets you call a Speed Dial or Intercom number by choosing the name associated with the number . Y ou do not have to dial the number - you just select the dis- played name instead. This feature can be programmed as a One-T ouch key in the Programmable Keys feature.
Do Not Disturb Do Not Disturb (DND) blocks Page announcements, ringing and incoming voice announcements to your extension. DND permits you to work undisturbed at your desk without interruptions from your phone. When you activate DND, incoming calls still flash your line keys.
1. Press twice to block just CO audible. flashes. ● T o activate DND while on a call, pr ess FTR then DND/CONF . 1. Do not lift handset. 2. Press once or twice (whichever makes extinguish). ● T o cancel DND while on a call, pr ess FTR then DND/CONF .
1. 2. Dial . ● Connection established. 1. 2. Press , then for box 1 or for box 2. 1. Press to activate the relay . ● The r elay remains closed for 5 seconds (This could be longer or for as long as the FLASH key is held down, depend- ing on pr ogramming).
Extension Hunting Extension Hunting routes internal and DISA calls to a predefined group of hunt group member extensions. A call will ring the first available extension in the hunt group. Extension Hunting is helpful, for example, for a group of co-workers that share responsibility for answering calls.
Handsfree (Speakerphone) When it's inconvenient to hold the handset, you can use the speaker and microphone in your telephone and talk Handsfree instead. Handsfree is great when you don't have a free hand for the phone. (For example, you may want to enter data at a computer terminal while talking to a customer on the phone.
1. Press . ● If Single Step Access is pr ogrammed, this step can be skipped. 2. Obtain outside or Intercom dial tone in the usual way . ● Listen for: Dial tone 3. Dial number . ● Speak towar d phone when call is established. 1. Press . ● If Ringing Line Pr eference is pr o- grammed, this step answers the call.
Headset Compatibility T o get even more freedom and convenience than with Handsfree, pur- chase a Headset and connect it to your telephone. In addition to hav- ing your hands free for other work, you'll have privacy on a call that is not available with Handsfree.
Hold (also known as System Hold) For normal calls . . . When you place an outside call on Hold, it flashes your line key and the line keys on your co-workers’ phones as well.
1. 2. Press flashing . 1. 2. Press flashing . OR Press . Dial and the extension num- ber that placed the call on Hold. ● Call is connected. 1. Press . 1. Press . 2. Press . 3. Press . 4. Press . Hotline - Dual Handsfree Hotline Dual Handsfree Hotline allows you to simultaneously call two other extensions.
Intercom call over the speaker of two 'executive' extensions. The users at the executive extensions can reply Handsfree (i.e., by just speaking toward the phone) and you can all talk. The simultaneous call goes through only if both executive extensions are idle and an executive extension has not forwarded Intercom calls.
1. 2. Press . ● Listen for: Dial tone 3. Dial extension number . ● T o convert a ringing call into a voice announced call or vice versa, dial '1'.
Meet-Me Conference Use Meet-Me Conference to have a telephone meeting with up to five other co-worker's. After you announce the Meet-Me Conference over the Paging, a co-worker joins the meeting by dialing the Meet-Me Conference code.
1. (Do not press ). 2. Press . ● Listen for: Conversation with Confer ence members. 1. 2. Press . ● Listen for: Dial tone 3. Dial code. ● 80 for All Call ● 81-84 for zones ● 85 for All Call, external zones only ● 86-87 for external zones (Portrait 824 system only) 4.
Message W aiting Don't keep recalling a busy or unanswered co-worker . Leave them a Message W aiting request for a return call instead. The request is a quick flashing MW LED at the multibutton extension you called and a double wink LED on your phone.
1. 2. Dial . 3. 1. 2. Dial , extension number , . 3. 1. 2. Press . ● The first message appears. Use '*' to advance and use '#' to go backwar d.
Do not lift handset. 1. Press . 2. Dial . ● Extension number displays. 3. T o display the next extension number that left a Message W aiting indication, dial again. 4. Press to return to normal display . 1. 2. Press . 3. Dial . ● The extension is called.
1. Press . ● The MIC LED lights steady . Y ou can do this while on a call or when your phone is idle. 1. Press . ● The MIC LED goes out. Name/Message Storing Y ou can create identification names for each outside line, extension and Speed Dial number in the system.
the first One-T ouch key and dial pad key '2' to get the letter 'A') ● 2) Pr ess the dial pad key showing the letter or symbol you desir e.
1. Press twice. 2. Press . 3. Dial extension number to be stored. 4. Dial . 5. Input the letters of the name to be stored. ● See 'T o enter a name' above. 6. Press . 7. Dial next extension number to store. OR Press to finish. 1. Press twice.
Night Answer (Off-Hours Ringing) Y ou may be able to activate Night Answer for your system. Used after normal working hours, Night Answer redirects your system's incoming calls to where they should ring at night. For example, when most of your co-workers have left for home, your system may redirect calls to the security desk.
Off-Hook Signaling T rying to get in touch with a co-worker who is busy on a call? Use Off-Hook Signaling to let your co-worker know you're trying to get through. There are two types of Off-Hook Signaling: CO Of f-Hook Signaling and Intercom Off-Hook Signaling.
1. Press to put an outside call in progress on Hold or hang up the call in progress. ● Y ou must hang up an Inter com call since no other featur e can be used without disconnecting the Inter com call. 2. Press the flashing . 1. Place an Intercom call.
Outside Calls, Answering Answering incoming calls can be as simple as pressing a line key or dialing an access code. There are many types of outside calls that you can answer from your phone. Ask your Communications Manager about the different types of calls you are expected to answer .
The method you use depends on how your system and your phone are set up. For example, if your office is set up like a 'key system', you and your co-workers will have line keys for the same outside lines. Y our Communications Manager can tell you which method you should use for placing outside calls.
1. 2. Press . 3. Dial Queue Group number (1-6). ● If you hear busy tone, the extension can not use Line Queuing for that gr oup. 4. Automatic Line Access Automatic Line Access lets you access an outgoing line without press- ing a line key or dialing a two-digit line number .
1. Dial phone number (pulse mode). 2. Dial . 3. Dial number (tone mode). Are Y ou Behind a PBX? Y our telephone system may be connected to a Private Branch Exchange (PBX) rather than to the telephone company's lines. This means that when you get dial tone on an outside line, you are really getting dial tone from the PBX.
If Y ou Hear a Warning T one While on an outside call, you may hear occasional beeps through your speaker or handset. These tones remind you that you have been on the call a long time.
1. Press . 2. Dial . 3. Dial 4 digit personal code. ● Y ou can dial any number as a personal code. 4. Dial . ● Listen for: Confirmation tone when featur e activated. OR Err or tone when feature is not activated. 5. Press . 1. Press . 2. Dial and enter the 4-digit code that was used when feature was activated.
1. Press . 2. Dial . 3. Dial password (73738 = RESET) ● Note: This is not the system passwor d. This is a special passwor d used for this featur e only . 4. Press . 5. Enter the station number to be cleared. 6. Press . ● T o enter additional stations, pr ess '#'.
incoming calls, Background Music (BGM) (Portrait 824 only) from an external source, and/or alarm signals to broadcast over the external page zone(s). 1. 2. Press . ● Listen for: Dial tone 3. Dial code. ● 80 for All Call (This can be pr o- grammed to page all internal and external zones.
features you use most often under the One-T ouch, CO or DSS keys. The chart below shows the available features and their corresponding feature numbers. Note that outside lines can only be stored in the top row and the first two keys on the left in the second row (keys 1-8).
1. Press . 2. Press . 3. Press a desired One-T ouch key or . 4. Dial feature number (01-22). 5. Dial . 6. Press . 1. Press . 2. Press . 3. Press a One-T ouch key or with the stored feature you wish to delete. 4. Dial to delete the stored feature. 5. Dial .
Repeat Dial T rying to get in touch with a customer and their phone is always busy or unanswered? Don't keep redialing it manually - have Repeat Dial do it for you. Repeat Dial will retry your call automatically until the called party answers or the feature is cancelled.
sounds in the warehouse when it's left unattended. Y ou just set up a Room Monitor with a phone in the warehouse area. Y ou must activate Room Monitor at your phone and at the phone you want to monitor . Y ou can only monitor one phone at a time, but any number of phones can monitor the same extension.
Y ou can also quickly redial your last call using Last Number Redial (page 40) and Repeat Redial (page 62). -Do not hang up. 1. Press twice. OR Press One-T ouch key . ● Save can r etain a number up to 18 dig- its long, using 0-9, # or *. 2. 1. 2. Press .
Selectable Display Messaging Activate a Selectable Display message when you leave your desk. A co-worker calling your extension will see the message you activated on their telephone's display . For example, when you leave for vaca- tion, select the message, 'ON V ACA TION'.
Do Not Disturb / General Message When Do Not Disturb is activated or if you're just away from your desk, you can program a message for all display phones calling your extension.
1.Press . 2. Enter the message number desired. 3. Press . 1. Press . 2. Press . T o cancel a Display Message: T o select a Display Message: Preset Messages (cont.
1. Press . 2. Press One-T ouch key #1 or #2. 3. Dial . 4. Enter your own message by using the Name/Message Storing feature (page 46). 5. Press . 6. Dial . 7. Press next One-T ouch key to be entered. OR Press to finish. 1. Press and . 2. Dial message number (00-49).
Broadcast Message 1. Press and . 2. Dial message number (00-49), dial . OR Press One-T ouch key #1 or #2 for a personal message, then dial . 3. Edit message if required. 4. Press . 5. Dial an extension number or hunt group number (00-04). 6. Press to set more extensions if required.
1. Press . Do Not Disturb Message / General Message 1. Press . 2. Dial message number (00-49), dial . OR Press One-T ouch key #1 or #2 for per- sonal message, then dial . ● DND/CONF flashes intermittently as confirmation. 1. Press and . 2. Use Name/Message Storing feature to enter a message (page 46).
1. Press and . ● When DND message is activated, DND/CONF flashes intermittently . Message W aiting Message 1. Place an Intercom call. ● Listen for: Busy or no answer 2. Dial . ● MW flashes intermittently as confirma- tion. ● Display shows 'LEA VE MESSAGE?'.
1. Press (Portrait 308) OR (Portrait 824). ● First message appears on the display . 2. Use to advance and use to backup. 3. Press to cancel message. OR Press to return to idle condition. 1. Press . ● First message appears on the display . 2. Use to advance and use to backup.
Camp-On Message 1. Place an Intercom call. ● Listen for: Busy tone 2. Activate Off-Hook Signaling by pressing . 3. Press . 4. Dial message number (00-49), dial . OR Press One-T ouch key #1 or #2 for per- sonal message, then dial . OR Press , edit a message using the Name Storing feature, then press again and dial .
Speed Dial Speed Dial gives you quick access to numbers you call frequently . This saves time, for example, when calling a client with whom you deal often. Instead of dialing a long telephone number , you just use Speed Dial. There are two types of Speed Dial: Personal Speed Dial and System Speed Dial .
1. or press . 2. Press an idle . 3. Press . 4. Dial Speed Dial number (00[0]-199). Personal Speed Dial 1. Press . 2. Press and . 3. Press a One-T ouch key . 4. Dial phone number to be stored. 5. Repeat steps 2 through 4 to program additional numbers. 6.
1. Seize a . 2. Press a One-T ouch key which stores the selected number . Step Calling When you make an Intercom call and receive a busy signal or no answer , Step Calling lets you call the other extensions, in ascending order , by just dialing '#'.
Note: Central Of fice Loop Supervision must be provided to prevent lines from remaining conferenced/busy when the parties hang up. Note: When both outside parties finish the call, unsupervised confer ence must be man- ually terminated by the telephone which set up the call.
T ime and Date Setting Y ou see the T ime and Date on your telephone's display when it is idle and while using some functions of the phone. The Time and Date are programmed at the station connected to port 10 (usually extension 10). Although entered in 24-hour format, the system time always displays in 12-hour format (AM/PM).
T ransfer T ransfer lets you quickly send the call you are on to a co-worker . Y ou can T ransfer any outside call. If a call you transfer is not answered, it automatically recalls to your extension. Y ou may T ransfer a call Screened or Unscreened. W ith Screened T ransfer , you announce the call to the destination user before hanging up.
1. Stay on the handset. ● The T ransfer goes through when the calling party pr esses TRFR. V oice Mail ☛ This feature requires an optional NVM-Series V oice Mail system. T ired and frustrated by missed calls, inaccurately written messages and telephone tag? End these hassles with Integrated V oice Mail.
Calling Y our Mailbox 1. 2. Press . 3. Press . 4. Press the one-touch key to be programmed. 5. Dial . 6. 1. Press the V oice Mail key . 2. (Optional) After answer, dial security code. ● Ask your Communications Manager for your security code. Leaving a Message The extension you call can be busy , in DND or unanswer ed.
Forwarding Calls to Y our Mailbox 1. 2. . 3. Dial station number of the voice mail. 4. Dial Call Forwarding condition: ● 0 = All Calls ● 1 = Not answer ed ● 2 = Busy ● 3 = Busy or not answer ed 5. 1. . 2. twice. 3. . T ransferring Calls to a Mailbox 1.
Recording Y our Call 1. 2. . 3. Dial and press a line key . 4. Dial . 5. Press . 6. 1. Press the programmed Record key . OR 1. If it's an Intercom call, press and dial . If it's a CO call, press and dial . ● Y ou hear two beeps and your Recor d key flashes.
1. Press or while the phone is ringing or idle. 1. Press or while on a handset call. 1. Press or in handsfree mode. Do not lift handset. 1. Press or while the phone is idle.
Charts This section contains handy charts for your reference. Y ou'll find: ● The dialing plan (the numbers you dial) -- see below ● Flash rates for your telephone keys - see page 86 Y our System's Dialing Plan W ith certain system programming changes, the feature access codes may be different than described.
System Flash Rates for LEDs Y our phone is idle (not on a call) All LEDs out (dark) Outside Calls An outside line is busy The line key is ON (Red) An outside call is ringing your phone The line key fl.
A Account Codes . . . . . . . . . . . . . .9 Alarm Clock . . . . . . . . . . . . . . . .9 Answering Outside Calls . . . . . .52 Automatic Line Access . . . . . . . .54 B Background Music . . . . . . . . . . .1 1 C Call Forwarding . . . . . . . . . . .
Hold . . . . . . . . . . . . . . . . . . . . . .36 Hotline-Dual Handsfree Hotline .38 I ICM SEE Intercom If Y ou Need Privacy . . . . . . . . . .5 Intercom . . . . . . . . . . . . . . . . . . .39 Internal Page . . . . . . . . . . . . . . . .58 L Last Number Redial .
S Save . . . . . . . . . . . . . . . . . . . . . .63 Selectable Display Messaging . . .65 Speakerphone . . . . . . . . . . . . . . .34 Speed Dial . . . . . . . . . . . . . . . . .74 Step Calling . . . . . . . . . . . . . . . .76 Streamlining Y our T elephone's Operation .
Index Index- 4 82400mfh05.qxd 3/30/01 9:30 AM Page 4.
NEC America, Inc., Corporate Networks Group 4 Forest Parkway , Shelton, CT 06484 T el: 800-365-1928 Fax: 203-926-5458 cng.nec.com Other Important T elephone Numbers Sales: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .203-926-5450 Customer Service: .
NEC America Inc., Corporate Networks Group 4 Forest Parkway, Shelton, CT 06484 TEL: 203-926-5400 FAX: 203-929-0535 cng.nec.com 82400mfh05CVR.QXD 3/30/01 9:26 AM Page 1.
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté NEC 308 c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du NEC 308 - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation NEC 308, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le NEC 308 va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le NEC 308, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du NEC 308.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le NEC 308. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei NEC 308 ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
