General information 13ServiceIf you experience problems or defects with the phone, please dial the service number for yourcountry.Intended useThe OpenStage phone is a desktop unit designed for voice transmission and for connection to theLAN. It can also be used as a workstation device. Any other use is regarded as unauthorised.Telephone typeThe phone name data can be found on the name plate on the base of the device; The exact prod-uct name and serial number are specified here. Specific details concerning your communicationsplatform can be obtained from your service technician.Please have this information ready when you contact our service department regarding faults orproblems with the product.Speakerphone quality and display legibility• To ensure good speakerphone quality, the area in front of the telephone (front right) should bekept clear). The optimum distance is approx. 50 cm.• Proceed as follows to optimise display legibility:– Turn the phone to tilt the display to ensure you have a frontal view of the display while elim-inating light reflexes.– Adjust the contrast as required Page 168.Single-line telephone/multi-line telephoneYour OpenStage 15 is a "multi-line telephone". This means that multiple lines can be configured,which is not the case with single-line phones. Each line is assigned an individual phone numberwhich you can use to make and receive calls.The programmable keys function as line keys on multi-line phones Page 20.A number of specific features must be considered when using a multi-line phone to make and re-ceive calls Page 119.Our service department can only help you if you experience problems or defects with thephone.Should you have any questions regarding operation, your specialist retailer or network ad-ministrator will gladly help you.For queries regarding connection of the telephone, please contact your network provider.
