Conference phones for every situation The Konftel 250 User Guide ENGLISH
Our patented audio technology, OmniSound®, is embedded into all Konftel phones to ensure crystal-clear voice transmission. We’re now taking OmniSound® to the next level. OmniSound® 2.0 provides the Konftel 250 with the capability to deliver an even more impressive audio quality. Just like OmniSound® full duplex, OmniSound® 2.0 uses an omni-directional microphone and three speakers for optimal audio performance. OmniSound® 2.
Table of contents Description 2 General................................................... 2 Maintenance........................................... 2 keypad................................................... 4 Navigation and selection in menus............ 5 Connections 6 Unpacking.............................................. 6 Connecting and installing......................... 6 Select region and language....................... 6 Answering and making calls 7 Answering calls.........................
Description General The Konftel 250 conference phone offers a host of innovative features: • OmniSound® 2.0 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 Speaker Microphone Display screen Keypad LEDs SD memory card port LEDs Flashing blue Incoming call Steady blue light Call in progress Flashing red Hold, microphone and speaker turned off Steady red light Mute, microphone turned off Analogue line connection Expansion microphone port Expansion microphone port Security lock port Power supply port 3
Description keypad UP ARROW navigation in menus, display of call list MENU, settings menu DOWN ARROW navigation in menus, display of call list C, no/end/back recording OK, yes/confirm choice Increase volume Answer/connect calls and Flash/R-pulse Decrease volume Hang up/end call MUTE the caller cannot hear you CONFERENCE automatic dialling of conference groups HOLD puts a call on hold Alphanumerical buttons Phonebook Writing text Each button contains letters and characters – more than those sho
Description Navigation and selection in menus Press MENU. 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 C. Quit the menu by pressing MENU 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, MENU > SETTINGS means you should: Press 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.
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 . 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 . Dial the number.
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.
During a call Adjusting the speaker volume Adjust the speaker volume using the buttons and . Placing calls on temporary hold Mute Press (Mute) to turn off the microphone. The LEDs change from blue to red. The other party cannot hear what you are saying. Press (Mute) to reconnect the call. Hold Press HOLD 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 HOLD to reconnect the call.
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. Entering text with the keypad Please turn to page 4 for instructions on using the keypad to enter text.
conference guide 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 C when you have called all the persons you want for your meeting.
conference guide Deleting conference groups Select MENU > 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 C. Delete all conference groups Select MENU > 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 C.
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. (MENU > PHONE BOOK > SEARCH CONTACT).
phonebook Deleting contacts Select MENU > 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 deletion of a contact by pressing C. Deleting all conference groups Select MENU > PHONE BOOK > ERASE ALL. Confirm that you really want to delete all contacts by pressing OK or cancel the deletion of a contact by pressing C. Displaying phonebook status Select MENU > PHONE BOOK > STATUS.
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 (see page 17). 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.
recording 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 MENU > 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.
recording Managing recordings Editing the name of a recording The recording is named by default with the time at which the recording started. Select MENU > 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 C.
Settings Selecting languages Select MENU > 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 MENU > SETTINGS > REGION. Select the region in which you are located.
SETTINGS Adjusting ring level volume Select MENU > 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.
Settings Adjusting sound (equalizer) The sound reproduction can be adjusted to the required pitch (SOFT, NEUTRAL and BRIGHT). Select MENU > 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 MENU > SETTINGS > SCREEN TEXT. Delete existing text using C and enter your new text. Press OK to confirm.
Optional accessories See www.konftel.com/250.
Troubleshooting If your Konftel 250 is not working properly: • Check that the microphone is turned on during the call. The blue microphone LEDs must be lit. • If the display shows “ANALOG OVERCURRENT”, the Konftel 250 is connected to a digital telephone jack. Switch to an analogue phone jack. • Bypass any extension cables and check that the Konftel 250 is working properly.
Technical specifications Size Diameter 240 mm, height 77 mm Weight 1 kg Colour Charcoal black Display screen Illuminated graphics (LCD), 128x64 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 Kensington security slot Memory Support for SD memory cards up to 2 GB Connectivity Analogue telephone connectivity Modular 6/6 modular (RJ11) to a public analogue telecommunication net
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)90-706 489 (Monday–Friday 8.00–17.00 GMT+1) E-mail: rma@konftel.
Konftel is a leading company within loudspeaker communication and audio technology. We develop and sell products and technology for telephone conferences based on cutting-edge expertise within acoustics and digital signal processing. A key attribute of our products is that all the conference telephones have built-in, high-quality audio technology – OmniSound® providing crystal-clear sound. Read more about Konftel and our products on www.konftel.com.
