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Teledex BTX4550

CONNECTING THE BTX4550

Included with the BTX4550 are (one each):

  • Line Cord
  • Coiled Handset Cord
  • Paper Faceplate
  • Handset
  • Clear Plastic Overlay
  • User Guide
  1. Located on the left side of the BTX4550 is a modular jack labeled TO HANDSET. Insert one end of the coiled handset cord into this jack (until you hear it click).
  2. Insert the other end of the coiled handset cord into the handset.
  3. Turn the telephone so the back panel is facing you. Insert either end of the line cord into the jack on the back of the telephone labeled TO TEL.
  4. Insert the other end of the line cord into a telephone wall outlet jack.
  5. The overlay is easiest to remove by, with your fingers, squeezing the outer edges causing a slight bow in the middle, then carefully remove one side of the overlay from the 3 tab guides. The overlay is easiest to insert when; The left or right side tabs are inserted first, and the middle part of the overlay is slightly bowed to allow for insertion of the other tabs.

RECEIVING A CALL

  1. Lift the handset to connect to the ringing line.
  2. To end the call, hang up by replacing the handset.

PLACING A CALL

  1. Lift the handset.
  2. Listen for dial tone. Dial the desired number, or press an AUTODIAL key to automatically dial a number.
  3. To end the call, hang up by replacing the handset.

VISUAL RING INDICATOR AND MESSAGE WAITING LIGHT

The raised red lens is a Visual Ring Indicator and Message Waiting light. The lens will flash when the telephone is ringing. Additionally, some telephone systems permit an operator or message center to turn on the red Message Waiting light to alert you that you have a message waiting.

USING THE DATA PORT

The DATA PORT provides convenient access to the telephone lines for connecting modems, fax and answering machines or other telephone components.

To use the DATA PORT:

Insert the modular line cord from your facsimile machine, modem, etc., into the jack labeled DATA.

ADJUSTING THE RING VOLUME

The BTX4550 has two ring volume settings. To change the ring volume:

Locate the adjustment control on the back of the telephone labeled RINGER LOW/ HI. Slide the switch to the desired LOW or HI ring volume.

AUTODIAL KEYS

The BTX4550 has 10 programmable AUTODIAL keys. These keys can be programmed to automatically dial telephone numbers or, to activate telephone system features when connected to a compatible PBX. The telephone will dial the number each time an AUTODIAL key is pressed.

STORING AUTODIAL KEYS

To store an AUTODIAL number:

The telephone must be connected to a telephone jack.

  1. Lift the handset.
  2. Press the STORE key and release it.
  3. Enter the telephone number including PAUSE or FLASH* as required (See Getting to Know diagram for key location). The dialing sequence can be up to 15 digits.
  4. Press the AUTODIAL key where the number is to be stored.
  5. Replace the handset.

FLASH KEY

The flash key provides a timed line interrupt typically used for accessing PBX/CO features like transfer and conference. The timing of the hookflash is programmable with the factory default timing set to 600 milliseconds. Some PBX's may require you to change the hookflash timing from the default 600ms. To change the hookflash timing:

  1. Lift the Handset.
  2. Press the STORE key (see diagram on back page).
  3. Press the FLASH key (see diagram on back page).
  4. Select 1 - 9 on the DTMF pad. The number selected will be the new flash timing in milliseconds (ie: "3" = 300 milliseconds).
  5. Press the STORE key.

PAUSE KEY

The PAUSE key can be used to provide a timed pause between dialed digits within an autodial key. The timing of the pause is programmable with the factory default set to zero (0) seconds. To change the pause timing:

  1. Lift the Handset.
  2. Press the STORE key (see diagram on back).
  3. Press the PAUSE key (see diagram on back).
  4. Select 1 - 9 on the DTMF pad. The number selected will be the new pause timing in seconds (ie: "3" = 3 Seconds).
  5. Press the STORE key.

PLACING A CALL ON HOLD

Press the red HOLD key. The red HOLD LED will light. The handset can be replaced in the cradle without disconnecting the call. To retrieve a call from HOLD, lift the handset from the cradle position. If handset is not in cradle, simply depress the HOLD key.

HANDSET VOLUME KEY

The HANDSET VOLUME key increases the handset volume to aid in hard to hear environments. At the start of each call the handset volume is at normal level. Pressing the handset volume increases the handset volume. Pressing the key again increases the handset volume additionally. Pressing the key a third time returns the handset volume to the normal level.

REDIAL

To redial the last telephone number dialed:

  1. Lift the handset, listen for dial tone.
  2. Press the REDIAL key, the BTX4550 will dial the last number dialed. NOTE: Some PBX's require a pause after the first digit to access an outside line. The REDIAL function will automatically incorporate a pause if the dialed number is 7 digits or more. The inserted pause will be of the same duration as set in the pause timing.

MUTE KEY

Press the Mute key, the red LED below the MUTE key will light. The party on the other end will not hear you when the MUTE key is depressed. Pressing the MUTE key again will release the key. This will allow the other party to hear you. This is for both handset and speakerphone calls.

PLACING A CALL ON THE SPEAKERPHONE

  1. Without lifting the handset, press the SPEAKERPHONE key. The red Speaker LED will light.
  2. Listen for dial tone. Dial the desired number, or press an AUTODIAL key to automatically dial a number.
  3. To end speakerphone calls, press the SPEAKERPHONE key . The LED will go out.

TIPS FOR USING THE SPEAKERPHONE

  1. Face the telephone to talk (the microphone is located on the front edge of the telephone).
  2. To go to handset mode, lift the handset, the SPEAKERPHONE will automatically go off. To return to speaker mode, press the SPEAKERPHONE key, the LED will light. Replace the handset (hang up).
  3. To end a speakerphone call, press the SPEAKERPHONE key.

ADJUSTING SPEAKERPHONE VOLUME

To increase/decrease speakerphone volume:

  1. Locate the slide switch (labeled SPKR VOL) on the right side of the telephone.
  2. To increase speaker volume, slide the SPKR VOL switch back towards the rear of the telephone. To decrease speaker volume, slide the SPKR VOL switch forward towards the front of the telephone.

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Last reviewed 9/24/2007 12:21:15 PM

Download User Guide (PDF)

On This Page

  • Connecting the BTX4550
  • Receiving a Call
  • Placing a Call
  • Visual Ring Indicator and Message Waiting Light
  • Using the Data Port
  • Adjusting the Ring Volume
  • Autodial Keys
  • Storing Autodial Keys
  • Flash Key
  • Pause Key
  • Placing a Call on Hold
  • Handset Volume Key
  • Redial
  • Mute Key
  • Placing a Call on the Speakerphone
  • Tips for Using the speakerphone
  • Adjusting Speakerphone Volume

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