Centrex telephone manual

Expansion Processor Module. Line Jacks. All four jacks on each module and the top two jacks on each module connect to Centrex lines. Extension Jacks. Inside wiring for telephones and other telecommunications equipment connects to the bottom six jacks on each module. Network Interface Jacks.

These jacks provide access to Centrex lines. Each Centrex line is connected to the equipment controller by plugging one end of the telephone Iine cord into one of these jacks, and the other end into a line jack on a or module. Expansion Cable. The expansion cable connects the primary processor module to the expansion processor module. Typically, the receptionist on extension 10, called the primary programming extension, has an MLSD phone.

This adapter permits the connection of two devices—in this example a standard touch-tone phone and an MLSD phone—on one extension jack. This is called a combination extension. The MLSD phone on extension jack 10 will not work during a power failure; therefore, the receptionist can use the standard phone.

Another MLSD is connected to extension jack 11, or the backup programming extension. You can program the premises equipment from this extension while the phone at extension jack 10 is free to handle calls. A fax machine and standard phone are connected together on this extension. This setup lets you share the fax line with a telephone. A loud bell, to provide loud ringing in a noisy area, is combined with an MLS phone.

This phone is similar to the MLSD telephone see extension jack 13 , but it has no display. An MLS-6 phone and an answering machine are connected to this extension. See page Extension Jack Standard Phone. A standard touch-tone phone such as you might have in your home is connected to this extension jack. It works like the corded MLS Note how the Hotline phone and doorphone are connected to the last available extension jacks on the last installed module in the equipment controller:.

Extension Jack Hotline—Standard Phone. When the handset of this phone is lifted, another phone rings. Extension Jack Doorphone. A doorphone is installed at the building entrance. When someone at the entrance presses the doorphone button, the designated extensions five maximum in the office alert.

Before installing the premises equipment, be sure you read the safety instructions on page 2-ii. In addition, be sure you have the parts shown in Figure if not, call the Helpline as instructed on the inside front cover of this guide. You will have up to four types of component packages; Figure shows the contents of each package type in an area marked by a dashed line.

For each carrier, you will need to obtain four 12 screws of the appropriate. Using the four screw keyholes in the backplane as a template, mark screw locations on the wall. Slip the backplane onto the screws and tighten them. B If you are mounting the expansion carrier, repeat this step. Push slowly but firmly until the module locks into place with two snaps, so that it is attached to the rear of the backplane and held by the locking tab on the bottom of the slot. Do not force the module.

If it does not insert easily, remove the module, clear any obstruction, and reinsert. B If you have an expansion carrier, slide the expansion processor module into its center slot until the module locks into place. The system will not work if a module is not installed in this slot. Going from left to right, install a module first, then a module. Each module must be to the right of a module.

There are no customer-serviceable components inside the modules or backplane. Hazardous voltages within. Route both ends of the cable through the hooks on the fronts of the modules.

NOTE: The colored plastic filters on the expansion cable should rest just below the hooks. B Press the AC power cord firmly into the power jack on the top right rear of the backplane until it locks into place. Plug the other end of the power cord into a grounded three-prong wall outlet not controlled by a switch. Repeat for the expansion carrier, plugging its cord into the same wall outlet. C Push in the main circuit breaker for the expansion carrier first, and then push in the main circuit breaker on the primary carrier.

If a single light is out, pull out the main circuit breakers, reseat the module, then push in the main circuit breakers as you did in Step 5C. If multiple lights are out, check to see that the modules are installed in the right order.

If they are, pull out the main circuit breakers, reseat the leftmost module of the ones that were out, then push in the main circuit breakers. If the lights are still out, call the Helpline. Connect a standard touch-tone phone to the first network interface jack. Lift the handset and listen for dial tone. Repeat for each network interface jack. If there is no dial tone, contact your local telephone company before continuing.

Press the line buttons for each Centrex line and listen for the dial tone. B Route each cord through the hook on the front of the module, then through the slot between the module and the base of the backplane. Connect each cord to the appropriate wall jack or directly to a phone. NOTE: If wall jacks are not installed, call a qualified service technician. B For all but MLSD phones, plug one end of the phone cord into the big jack on the bottom of the phone; push the cord into place along the channel on the bottom of the phone.

Otherwise, go to Step 3. Insert the tab on the narrow end of the stand into the right slot on the bottom of the phone. For an MLSD phone, feed the cord through the stand and plug it in. Then insert the other tab into the left slot, pushing the stand down and slightly inward until the tab locks into place. Carefully replace the plastic cover. B Slide the. To wall mount an MLC-6 cordless phone, follow the instructions in the booklet provided with the phone.

Insert the tab on the narrow end of the stand into the left slot on the bottom of the phone. Then insert the other tab into the right slot, pushing the stand down and slightly inward until the tab locks into place. Do not unscrew the bottom of the phone. To do so will expose you to a risk of electrical shock. Mount the phone on the wall jack using the screw keyholes on the base of the stand. B Remove the plastic cover from the phone and place a labelled button sheet on the phone as in Step 3A above.

To install two phones or other devices on a single extension jack, see Figure on page Before releasing the [ ] button, lift the handset.

If not, call the Helpline. Replace the handset; the phone is now in normal operating mode. B Route the cord as for other line and extension cords. See Chapter 5 for instructions on programming a Hotline phone extension. See Chapter 5 for instructions on programming a doorphone extension.

NOTE: If you add a module to your premises equipment, you should move the Hotline phone and doorphone extensions. Route the cord as for line and extension cords, then connect it to the loudspeaker paging system. Route the cord as you did for the line and extension cords, then connect it to the audio source. B To adjust volume, first use a flathead screwdriver to turn the volume control on the primary processor module counter-clockwise to the lowest setting, then connect the AC power.

Place a call on hold and listen while adjusting volume. If you do not hear music at any setting, check System Programming procedure see page NOTE: Only the steps for connection to the equipment controller are provided here.

See Chapter 5 for instructions on activating the Music-on-Hold Jack, Chapter 6 for using the paging system, and Chapter 7 for information on call reporting. B Slide the equipment controller cover off the backplane.

B Connect line and extension jack cords as described on page Refer to page for instructions on adjusting System Programming. Power up the equipment controller and check the lights on the modules using the instructions in Steps 5 and 6 on page If there is not enough slack to remove the module without pulling the line and extension cords free, label and disconnect the wires before moving on to Step 2B. B Place one hand on top of the module.

With the other hand, grip the plastic bracket on the bottom front of the module, and use the middle finger to hold down the locking tab just below the bracket. C Pull out the old module and insert the replacement. Refer to Step 3 on page B Power up the equipment controller and check the lights on the modules using the instructions in Steps 5 and 6 on page C Replace the cover.

This chapter explains how your premises equipment works in conjunction with your Centrex services. The following topics are discussed:. For example, the controller automatically distributes the Centrex lines connected to your equipment controller, assigning a primary line to each system extension, and sets all.

This means that anyone inside or outside the Centrex system can dial an extension directly, simply by dialing the phone number. This guide describes only the operation of your premises equipment; for information on Centrex services, see the Centrex documentation provided by your local telephone company.

If you wish to change the defaults described in this chapter, see Chapter 4 for information on the options that are available or Chapter 5 for equipment programming procedures.

Programmable A telephone button that can be set up to access a feature. Your local telephone company provides a block of Centrex lines that are used with your telephones.

When you connect these lines to your equipment controller and supply electrical power, the controller automatically assigns one Centrex line to each extension. The only exception is the phone connected to extension jack 10, which is assigned all of the lines in your system, to permit a receptionist to answer calls for users if they do not pick up immediately. By default, the primary line for an extension is set for immediate ringing and any secondary lines are set for delayed ringing.

The equipment controller passes Centrex ringing patterns through to each phone for example, Centrex ringing patterns are usually different for outside and inside calls.

Each Centrex line is identified by a seven-digit telephone number for example, When someone outside your system calls a Centrex telephone number an outside call , the call rings at the extension where that number is assigned as the primary line.

Users who are on the same Centrex system can generally dial another extension an inside call using the Centrex extension number. The Centrex extension number is typically the last digits of the telephone number—the number of digits is determined by the local telephone company, but in most cases the last four or five digits of the telephone number are used.

For example, the Centrex extension number for might be or Some Centrex. Although users will identify extensions by the Centrex extension number, the equipment controller tracks lines and extensions using two other numbers, based on the physical connections at the equipment controller.

When your premises equipment was installed see Chapter 2 , the following connections were made:. Each line jack on the controller is identified by a line jack number. Line jack numbers run from 01 through 24 if you have the maximum number of lines that can be used with your premises equipment. Each extension jack on the controller is identified by an extension jack number. Extension jack numbers run from 10 through 33 if you have the maximum number of extensions that can be used with your premises equipment.

Line jack numbers and extension jack numbers are required for many of the programming procedures that you use to customize your premises equipment. Figure shows line jack numbers and extension jack numbers in relation to telephone numbers and Centrex extension numbers in a very small three-telephone system. The three lines in this example , , and use the last four digits of the phone number as the Centrex extension number.

The first line has Centrex extension number ; it is connected to the first line jack on the equipment controller line jack 01 , and serves as the primary line for the phone connected to extension jack The other two lines are connected to line jacks 02 and 03, and provide primary lines for the phones connected to extension jacks 11 and 12, respectively.

Figure shows only primary line assignments. By default, the equipment controller assigns all lines to the phone connected to extension jack 10, but only the first line is primary. With each Centrex line, you have a set of Centrex services some services may not be available on all lines. Table lists some of the most popular Centrex services. To complement your Centrex services, your equipment controller provides additional features.

You can use Table to identify the services you have on your Centrex system; then see Chapter 4 for more information on equipment features you may want to add to your system.

Centrex services are supplied by your local telephone company; see the Centrex documentation provided by your local telephone company for more specific information on the services available with your system. Also, be aware that the names of services may vary depending on the supplier. You can use the System Planner to record the services available on each line in your system.

Many Centrex services are accessed by pressing the switchhook on a standard phone, then dialing a Centrex feature code. On an MLSor MLC-model phone, however, use the Recall feature to send a timed switchhook flash and then dial the Centrex feature code—see Chapter 5 for instructions on programming the Recall feature on a button and Chapter 6 for instructions on using the Recall feature. Pressing the switchhook on an MLSor MLC-model phone disconnects the current call instead of sending a switchhook flash.

Lets a user dial a code to pick up a call ringing at any extension in the pickup. The party dialed can then pick up. Lets a user determine whether an incoming call or call waiting signal is from an.

The equipment controller. Restricts calls made from a specific Centrex line or group of lines. May allow. Allows special call handling, when a receptionist is not available for example,. All MLSand MLC-model phones have preprogrammed [ Conf ] and [ Transfer ] buttons that can be used for one-touch access to the Centrex services for conference calling and call transfer.

Auto Dial buttons let you program a sequence of digits onto a programmable phone button, and then dial the digits simply by pressing the programmed button. You can use Auto Dial buttons to store the codes you use to access Centrex services, or to store frequently-dialed phone numbers for one-touch dialing. To store a Centrex feature code on an Auto Dial button, first make sure the service is available on the Centrex line for the extension being programmed.

Then store the Centrex feature code on the button. For MLSand MLC-model phones, use the instructions on pages and ; for feature phones, follow the instructions provided with the phone. When a Centrex feature code is stored on a programmable button on an MLSor MLC-model phone, the lights next to the button do not show when the feature is active. You can store outside telephone numbers or Centrex extension numbers on Auto Dial buttons.

Pressing the button automatically dials the number. Outside numbers and Centrex extension numbers can be stored on any phone with programmable buttons.

For example, to dial , store 9 1 on the Auto Dial button. If a dial-out code is required for outside calls, this code should be programmed for the premises equipment using the PBX Dial-Out Code procedure. If you store a Centrex extension number on a button, you can use the button to call the extension simply by pressing the button or to help in transferring the call.

For instructions on using Centrex call transfer, see the Centrex documentation provided by your local telephone company. As discussed in Chapter 3, the default settings for your premises equipment are designed to complement your Centrex services. However, you may wish to customize your premises equipment to fit the needs of your business more exactly. This chapter describes some equipment features that can provide added benefits to your system, as well as some settings that you may wish to change to tailor your phone system to your needs.

Use the material here to help you make choices about the way you want your system to work and identify the relevant programming procedures; then see Chapter 5 for detailed programming instructions. The System Planner for your premises equipment provides an ongoing record of your equipment setup and programming.

If you change the programming for your premises equipment after installation, record any changes in your System Planner. This ensures that you always have a current record of your equipment programming. See also Auto Dial button. Welcome to ManualMachine. We have sent a verification link to to complete your registration. Log In Sign Up. Forgot password? Enter your email address and check your inbox. Please check your email for further instructions.

Enter a new password. Partner II. November Notice Every effort was made to ensure that the information in this book was complete and accurate at the time of printing. Plexar is a registered trademark of Southwestern Bell Telephone.

Ordering Information The order number for this book is Support Telephone Numbers In the U. About This Guide Purpose The system described in this guide consists of premises equipment and Centrex services. Terminology The following terms are used throughout this guide, and are important for understanding how your system works.

Centrex Centrex system Equipment controller. Equipment A feature provided by your equipment controller as opposed feature to a service provided by Centrex. These telephones are specifically designed for use telephones with the equipment controller. Standard An industry-standard touch-tone or rotary phone such as you phone might have in your home.

Some standard phones include special feature buttons for frequently-used calling functions. System Your premises equipment, in combination with the Centrex lines that are connected to your equipment controller and the Centrex services that are available on those lines.

See also Centrex system and Premises equipment. How to Comment on This Guide A feedback form is located at the end of this guide, after the appendixes. Terminology The following terms are used in this chapter.

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