Konftel 250 manual Technical Specifications, Connectivity, Audio, Environment

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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 telecommuni-

 

cation network or an analogue PBX

Power supply

AC adapter 100–240 V AC/14 V DC

Expansion microphones

2 modular 4/4

Audio

Technology

OmniSound® HD

Microphone

Omni-directional

Reception area

Up to 30 metres2, >10 people

Speakers

Frequency band 200–3300 Hz

Sound level

90 dB SPL 0.5 m

Equalizer

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

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Contents
Konftel 250 User Guide OmniSound HD Optimal sound Table of Contents General MaintenanceDescription Description Writing text KeypadMenu tree Navigation and Selection in MenusWriting style in instructions Select Region and Language Connecting and InstallingConnections UnpackingMaking Calls Answering and Making CallsAnswering Calls Ending Calls Go back to the first call by pressing F If you don’t get an answer when you dial the second numberAnswering and Making Calls Making THREE-WAY CallsMute Adjusting the Speaker VolumeDuring a Call Placing Calls on Temporary HoldEntering text with the keypad Conference GuideCreating Conference Groups Making Conference Group CallsEditing Conference Groups Conference GuideMaking MULTI-PARTY Calls Displaying Conference Group ParticipantsDelete ALL Conference Groups Conference Guide SettingsIf you experience problems making multi-party calls Deleting Conference GroupsEditing Contacts PhonebookSearching for Contacts Adding ContactsDisplaying Phonebook Status PhonebookDeleting Contacts Deleting ALL Conference GroupsHold RecordingStarting a Recording Mute FunctionListening to a Recording RecordingManaging Recordings Adjusting the Recording IndicatorDisplaying Recording Feature Status Select Region SettingsAdjusting Date and Time Selecting LanguagesSelecting Caller ID Standard SettingsAdjusting Ring Level Volume Adjusting the FLASH/R Pulse DurationChanging Text on the Display Screen Adjusting Sound EqualizerAdjusting LCD Contrast ResettingEnvironment Technical SpecificationsConnectivity AudioWe give a two-year guarantee on our conference telephones Service and GuaranteeGuarantee Service
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