KONFTEL 250 Easy to Use Analog Conference Phone User Guide

: June 5, 2024
: Konftel

KONFTEL 250 Easy to Use Analog Conference Phone

KONFTEL 250 Easy to Use Analog Conference Phone
product

DESCRIPTION

GENERAL

The Konftel 250 conference phone offers a host of innovative features:

Omni Sound® HD audio technology.
Conference guide for easy set-up of multiparty calls.
Record your meetings with an SD memory card so that you can listen to them later on.
Expansion microphones can be added to increase the voice pickup range. (Optional.)
2 year guarantee.

MAINTENANCE

Clean the equipment with a soft, dry cloth. Never use liquids.

DESCRIPTION

DESCRIPTION 02

KEYPAD

Some Konftel 250 have a different keypad with other symbols. This does not affect the functions of the buttons.

Writing text

Each button contains letters and characters – more than those shown on the button (see illustration below). Press the same button repeatedly to change to another character. If there are two letters under the same button that you want to enter one after the other, you need to pause slightly before entering the second letter.

Press the button to delete the last character you entered.

Writing text

Press .
Select the option you want from the menu using the arrow buttons.
Confirm by pressing OK to select the marked option.
Cancel the setting or go back one level in the menu by pressing
Quit the menu by pressing again.
Note that after you have made changes to a setting, you must press OK to activate the setting

Writing Style in Instructions

In the instructions, > SETTINGS means you should:

Press button.
Mark the SETTINGS option using the arrow buttons and confirm by pressing OK to open the menu.

CONNECTIONS

UNPACKING

Check that all parts are included in the package. If any parts are missing, please contact your retailer.
The Konftel 250 conference phone
Power adapter with universal socket compatibility
7.5 metre cable for electric power and line connection
Intermediate plugs for analogue connection
Quick reference guides in different languages

CONNECTING AND INSTALLING

Connect to an analogue line as illustrated.
Plug the Konftel 250 into the mains using the power adapter as illustrated.
Place the conference phone in the middle of the table.

CONNECTING AND INSTALLING

SELECT REGION AND LANGUAGE

The first time the Konftel 250 is started, you will be required to select the region in which you are located. The Konftel 250 then automatically configures to the telecom network for that region. Select the region in which you are located. Click OK to confirm your selection. You can use the arrow buttons to press an alphanumeric button to jump to the first region that starts with that letter in the list. Select the language you want. Click OK to confirm your selection.

Select > SETTINGS if you want to set the date and time or make other adjustments

ANSWERING AND MAKING CALLS

ANSWERING CALLS

A ring tone is heard and the blue LEDs start flashing. Press to answer.
The LEDs show a steady blue light. The duration of the call is shown on the display screen.

ENDING CALLS

End the call by pressing

MAKING CALLS

Dial the number. Press button. The number is called and the LEDs show a steady blue light. The duration of the call is shown on the display screen, or
Press button. Dial the number. The number is called and the LEDs show a steady blue light. The duration of the call is shown on the display screen.

Redialling

Press an arrow button .The last number that you dialed appears on the display screen. Use the arrow buttons to look through previously dialed numbers. Press .The number you select is dialed.

Calling from the phonebook

Please turn to page 13 for instructions on adding and updating contacts in the phone-book. press (Phonebook).Mark the contact you want. You can use the arrow buttons to press an alphanumeric button to jump to the first name that starts with that letter in the list. Press .The contact you select is dialed.

ANSWERING AND MAKING CALLS

MAKING THREE-WAY CALLS

The simplest way to set up a multi-party call is to use the conference guide (see page 10). You can connect another party to an on-going call as follows. During a call, the button acts as Flash/R-pulse, which means it transmits commands to the PBX . . If you experience problems making multi-party calls: Different PBXs may require different signals. Please contact your telephone administrator or service provider. Turn to page 12 for more details. press A second dialing tone is heard .Dial the second participant’s number and wait for an answer. Press the button and then 3.All three participants are now linked together in one call If you don’t get an answer when you dial the second number Go back to the first call by pressing .

DURING A CALL

ADJUSTING THE SPEAKER VOLUME
Adjust the speaker volume using the buttons

PLACING CALLS ON TEMPORARY HOLD

Mute
Press to turn off the microphone .The LEDs change from blue to red. The other party cannot hear what you are saying. Press to reconnect the call.

Hold
Press to put the call on hold. The LEDs change from blue to flashing red. Both the microphone and the speaker are turned off and the call is on hold.
Press to reconnect the call

ENDING CALLS
End the call by pressing

CONFERENCE GUIDE

The conference guide allows you to create 20 conference groups with up to six people in each. You can now call the participants in a meeting by simply pressing a few buttons.
You may need to adjust some settings in your Konftel 250 to make it compatible with your PBX. Please turn to page 12 in this User Guide for more details.

CREATING CONFERENCE GROUPS

Select > CONF GUIDE > ADD GROUP.
Enter a group name and press OK to confirm.
Press OK to enter the first person.
Write the name of the first person and press OK to confirm. Enter the number and press OK to confirm.
Press OK to add another person and repeat the above steps.
Conclude by pressing specific button.

MAKING CONFERENCE GROUP CALLS

Press the (Conference) button.

Select the conference group you want to call. The Konftel 250 dials the first person and asks you to confirm when the person answers.
Press OK when the first person has answered.
Continue in the same way for each person in the group.

If you don’t get an answer
Press if one of the persons you are trying to call does not answer. The conference guide will ask you if you want to redial that person. Either press OK or . If you decide not to redial you will be asked if want to end the conference guide or continue to the next person Press OK to continue and to end the guide. When the guide has ended, you will be connected with up to six people and ready to start your conference. Please note that you can also call a conference group via SEARCH GROUP in the CONF GUIDE menu.

MAKING MULTI-PARTY CALLS
Press the (Conference) button.

Select QUICK GUIDE with the arrow buttons. Press OK to confirm. The Quick Guide asks you to dial the first number.
Dial the first person’s telephone number. Press OK to confirm.
Press OK when the first person has answered.
Press OK to call another person and repeat the above steps. Press when you have called all the persons you want for your meeting.If one of the persons does not answer, follow the steps for calling a saved conference group (see above).

DISPLAYING CONFERENCE GROUP PARTICIPANTS

Select > CONF GUIDE > SHOW GROUP.
Mark the group you want and press OK.The names of the conference group participants are displayed.

EDITING CONFERENCE GROUPS

Select > CONF GUIDE > EDIT GROUP. Here, you can change the name of a conference group, add or delete a person from a group and change a person’s name and phone number.
Mark your choice of option in the menu using the arrow buttons and press OK to confirm. The names of the conference groups are displayed.
Mark the group you want to change and press OK to confirm.
Mark a person you want to change and press OK to confirm.
Make the change and press OK to confirm.

Delete a number or a letter in a name by pressing. If you want to cancel the change you are making and leave the name or number as they were, press until the CONFERENCE GUIDE menu appears.

DELETING CONFERENCE GROUPS

Select > CONF GUIDE > ERASE GROUP.
Mark the group you want to delete and press OK.
Confirm that you really want to delete the group by pressing OK or cancel the deletion of a group by pressing .

DELETE ALL CONFERENCE GROUPS

Select > CONF GUIDE > ERASE ALL.
Confirm that you really want to delete all groups by pressing OK or cancel the deletion of all groups by pressing .

CONFERENCE GUIDE SETTINGS
When a multi-party call is going to be connected, a special signal (flash or R-pulse) is produced which transmits the command (request, return and conference) to the PBX. It may be necessary to change the type of signal if calls are connected via a PBX. Different PBXs may require different signals. These requirements should be specified in the techni-cal data for the PBX. Settings for the most common PBXs are listed on Konftel’s website.

Select > CONF GUIDE > SETTINGS.
Enter the command for a request for a new dialling tone and press OK to confirm. (“F” is the basic setting)
Enter the command to connect everyone to a multi-party call and press OK to confirm.(“F3” is the basic setting)
Enter the command to return to your original call and press OK to confirm. (“F” is the basic setting)

If you experience problems making multi-party calls
It may be necessary to change the duration of the R-pulse so that it works with your PBX. Read “ADJUSTING THE FLASH/R PULSE DURATION” on page 19.Your PBX may not be programmed to admit multi-party calls or the procedure may be different. Please contact your telephone administrator or service provider.

DISPLAYING CONFERENCE GUIDE STATUS

Select > CONF GUIDE > STATUS. The display screen indicates the number of conference groups already stored plus how many more groups can be added.

PHONEBOOK

The Konftel 250 has a phonebook that holds up to 50 entries. See page 7 for making calls via the phonebook.

Entering text with the keypad
Please turn to page 4 for instructions on using the keypad to enter text.

SEARCHING FOR CONTACTS
Press (Phonebook). Another way to search for a contact in the address book is to hold down a number button for two seconds (see page 8). You can also search for a contact via the PHONEBOOK menu. ( > PHONE BOOK > SEARCH CONTACT).Mark the contact you want. You can use the arrow buttons to press an alphanumeric button to jump to the first name that starts with that letter in the list. Press OK or to dial the selected contact, to return to the PHONEBOOK menu or to exit the menu.

ADDING CONTACTS

Select > PHONE BOOK > EDIT CONTACT.
Mark the contact you want to change. Press OK to confirm.
Make the change and press OK to confirm.

Delete a number or a letter in a name by pressing. If you want to cancel the change you are making and leave the name or number as they were, press until the PHONEBOOK menu appears.

DELETING CONTACTS

Select > PHONE BOOK > ERASE CONTACT.
Mark the contact you want to delete and press OK.
Confirm that you really want to delete the contact by pressing OK or cancel the dele-tion of a contact by pressing .

DELETING ALL CONFERENCE GROUPS

Select > PHONE BOOK > ERASE ALL.
Confirm that you really want to delete all contacts by pressing OK or cancel the dele-tion of a contact by pressing .

DISPLAYING PHONEBOOK STATUS

Select > PHONE BOOK > STATUS. The display screen indicates the number of contacts already stored plus how many more contacts can be added.

RECORDING

It is possible to record a phone conference on an SD (Secure Digital) memory card so you can listen to it later on. A flashing symbol appears on the display screen during recording. A beep is heard every 20 seconds so that other parties in the call know it is being recorded. The beep can be turned off. The recorded call is saved on the memory card. The document is named after the time at which the recording began (e.g. 14-35-01.wav) and is saved in a folder with the current date. This name can be changed after the recording has ended.

STARTING A RECORDING
Remember to notify all parties in the call before you start recording. Press the button for two seconds and press OK to confirm. The recording symbol flashes on the display screen.

MUTE FUNCTION
Press the button during a call to turn the microphone off. The LEDs change from blue to red. The other party cannot hear what you are saying and only the called party is recorded.

HOLD
Press during the call to put the call on hold. ENDING A RECORDING. The LEDs change from blue to flashing red. Both the microphone and the speaker are turned off and the call is on hold. None of the parties will now be recorded.

ENDING A RECORDING
Press the button for two seconds and press OK to confirm. The recording symbol is no longer displayed on the screen.

LISTENING TO A RECORDING
You can listen to a recorded phone conference on your Konftel 250 or a computer using an SD memory card reader. Recordings are saved in .wav format and can be played back on your choice of media player.Listening to recordings on the Konftel 250:

Select > RECORDING > PLAYBACK FILE.
Mark the folder you want (date) and press OK to confirm.
A list of all recordings for the specified date is displayed. Names, date, time and length are displayed for each recording.
Mark the recording you want and start the playback by pressing OK.

Adjusting the speaker volume
Increase the volume using the button and lower it using

Pause playback

Pause the playback by pressing OK.
Restart playback by pressing OK again

Move forward in the recording during playback

Move forward in the recording by pressing arrow down or backward by pressing arrow up. The recording advances about 10 seconds every time you press the button.

You can also jump further forward in the recording:

Key 3 – forward 1 minute
Key 6 – forward 10 minutes
Key 1 – backward 1 minute
Key 4 – backward 10 minutes

Stop playback.
Stop the playback by pressing

MANAGING RECORDINGS

Editing the name of a recording

The recording is named by default with the time at which the recording started.

Select > RECORDING > RENAME FILE.
Mark the folder you want and press OK to confirm.
Mark the recording to be edited and press OK.
Make the change and press OK to confirm. Delete a number or a letter in a name by pressing. If you want to cancel the change you are making and leave the name or number as they were, press several times until the RECORDING menu appears

Deleting a recording

Select > RECORDING > DELETE FILE.
Mark the folder you want and press OK.
Mark the recording to be deleted and press OK.
Confirm that you really want to delete the recording by pressing OK again, or cancel the deletion of a recording by pressing .

Deleting All Recordings

Select > RECORDING > DELETE ALL.
That you really want to delete all recordings by pressing OK again, or cancel the deletion of a recording by pressing .

ADJUSTING THE RECORDING INDICATOR

A short beep is heard every 20 seconds so that all the parties in the call know it is being recorded. This feature can be turned off

Select > RECORDING > SETTINGS.
Select your choice and press OK to confirm.

DISPLAYING RECORDING FEATURE STATUS

Select > RECORDING > STATUS. The display screen indicates the number of recordings, the total length of recorded calls and how many hours of recording time are left before the memory card is full.

SETTINGS

SELECTING LANGUAGES

Select > SETTINGS > LANGUAGE.
Select the language you want and press OK to confirm.

SELECT REGION

The first time the Konftel 250 is started, you will be required to select the region in which you are located. The Konftel 250 then automatically configures to the telecom network for that region. Your selected entries can be changed later via this menu. Select > SETTINGS > REGION.
Select the region in which you are located.

DEACTIVATING KEYPAD TONES

You can select whether or not you want a tone to be heard when you press a button. Note that this setting does not affect the tone you hear when you dial a number in call mode. Select > SETTINGS > KEY TONE. Select your choice and press OK to confirm.

ADJUSTING DATE AND TIME

Changing the date

Select > SETTINGS > TIME DATE > DATE.
Change the flashing figures for the year using the arrow buttons or by entering the figures on the keypad. Press OK to confirm and to continue to the month, and then proceed in the same way for the day.

Changing the time

Select > SETTINGS > TIME DATE > TIME.
Change the flashing figures for the hour using the arrow buttons or by entering the figures on the keypad. Press OK to confirm and to continue to minutes.

Changing the time format

Select > SETTINGS > TIME DATE > TIME FORMAT.
Select either a 12-hour or a 24-hour format using the arrow buttons and press OK to confirm your choice.

ADJUSTING RING LEVEL VOLUME

Select > SETTINGS > RING LEVEL.
Select your choice and press OK to confirm.
There are six volume levels plus a silent mode. You will hear the ring tone for each level you select. If you select silent mode, an LED on the phone flashes when an incoming call is received.

ADJUSTING THE FLASH/R PULSE DURATION
The Flash/R pulse (Register recall) is used to request a new line from the PBX. Different countries and PBXs may require different durations for activating the Flash/R pulse. Duration requirements should be specified in the technical data for the PBXs.

Select > SETTINGS > FLASH.
Select your choice and press OK to confirm. Examples of suitable settings are:100 ms – Scandinavia, Europe, Siemens HiPath 300 ms –Germany, France, Israel 500 ms – USA

SELECTING CALLER ID STANDARD
Konftel 250 needs to be configured to match the Caller ID standard in your country. Note that in some cases even individual states/provinces within a country use different standards. The table below is a guideline for choosing the correct setting. If the caller ID is not working properly, select another setting or contact your telephone service provider for further information.

Caller ID standard: Country

Bell core (Telcordia) : Canada (usually), USA, Australia, New Zealand, China, Hong Kong, Singapore
ETSI: Austria, Belgium, Czech Republic, France, Germany, Italy, Luxemburg, Norway, Poland, Spain, Slovenia, Switzerland, Turkey, South Africa ,Taiwan
BT (British Telecom): United Kingdom

DTMF : Denmark, Finland, Greece, Iceland, Netherlands, Portugal, Sweden, China, India, Saudi Arabia, Brazil, Uruguay

Select > SETTINGS > CALLER ID.
Select your choice and press OK to confirm.

ADJUSTING SOUND (EQUALIZER)
The sound reproduction can be adjusted to the required pitch (SOFT, NEUTRAL and BRIGHT).

Select > SETTINGS > EQUALIZER.
Select your choice and press OK to confirm.

CHANGING TEXT ON THE DISPLAY SCREEN
The text on the display screen can be changed when the Konftel 250 is on hook.
Select > SETTINGS > SCREEN TEXT.
Delete existing text using and enter your new text. Press OK to confirm.

ADJUSTING LCD CONTRAST

Select > SETTINGS > LCD CONTRAST.
Select your choice and press OK to confirm.

RESETTING
There is a menu option under SETTINGS that resets all settings to default. Please note that this also deletes all contacts in the phonebook and all groups saved in the conference guide.

Select > SETTINGS > DEFAULT.
Confirm that you really want to reset the settings to default by pressing OK again, or cancel the resetting procedure by pressing .

CHECKING STATUS
If you need to check the software version or serial number.

Select > STATUS.

TECHNICAL SPECIFICATIONS

Size: Diameter 240 mm, height 77 mm
Weight: 1 kg
Colour : Charcoal black
Display screen: Illuminated graphics (LCD), 128×64
Keypad: Alphanumerical 0–9, *, off hook/F, on hook, mute, hold, volume up, volume down, 5 buttons for menu navigation, phone book, conference guide

Anti-theft protection Memory: Kensington security slot

Connectivity
Analogue telephone connectivity: Modular 6/6 modular (RJ11) to a public analogue telecom-munication network or an analogue PBX
AC adapter 100–240 V AC/14 V DC

Power supply: AC adapter 100–240 V AC/14 V DC

Expansion microphones:2 modular 4/4

Audio

Technology: Omni Sound® HD
Microphone: Omni-directional
Reception area: Up to 30 metres2, >10 people
Speakers: Frequency band 200–3300 Hz
Sound level: Three pitches: soft, neutral, bright

Environment

Temperature: 5°–40°C
Relative humidity: 20–80% condensation free
Recommended acoustic conditions: Reverberation period: 0.5 S Rt 60 Background noise: 45 dBA

SERVICE AND GUARANTEE

If anything is wrong with your Konftel unit, please contact the place of purchase.

Guarantee
We give a two-year guarantee on our conference telephones.

Service
Service is offered after the expiration of the guarantee. Please contact your retailer and ask for a cost estimate

Konftel support
If you have any questions about the guarantee and service, please contact your Konftel support centre
Europe: +46(0)90-489
(Monday_ Friday 8.00-17.00GMT+1)
Email: rma@konftel.com

USA and CANDA
+1866-606-4728
(Monday-Friday 8.00-17.00+8)
Email: konftel.usa@konftel.com

Konftel is a leading company and the world’s fastest growing brand, within audio conferencing equipment. Since 1988, our mission has been to help people around the world to conduct meetings despite distances. Based on our success, we know that audio conferencing is a great way to save time, money and at the same time contribute to a better environment. High audio quality is essential for efficient meetings, this is why our patented audio technology Omni Sound®, is built into all Konftel Conference phones. The products are sold globally under the Konftel brand and our head-quarter is based in Sweden. Read more about the company and products on www.konftel.com