1424_EN_LZT103088 Rev B1 2009-05-20 © Copyright Aastra Telecom Sweden, 2009.All rights reserved. 18• Enter *#06# when phone is in idle mode.A message box with the text IPEI/IPDI followed by the IPEInumber (13 digits) and the IPDI number is shown.Note: If your phone is broken and needs to be replaced with anotherphone, please contact your system administrator.2.5 Software VersionTo view the phone’s software version:1. Enter *#34# in idle mode mode.2. Select Software.2.6 Accessibility and Voice QualityThe base network is not always available. If you do not get in contact withyour system, contact your system administrator. For best voice quality,avoid positioning near computer, radio or similar equipment.2.6.1 Operating areaYou can use your cordless phone in the area that is covered by thenetwork. Outside this area you will lose contact with the phone network.The signal strength icon, , will disappear and No System will bedisplayed.2.6.2 Out of RangeWhen you leave the system coverage area you will hear a short beep andsee a lamp indication, and the text Searching will appear in the display.The out of range beep will be repeated every minute for 30 minutes. It ispossible to switch off this beep by pressing . When re-entering thecoverage area it can take a couple of minutes before the phoneautomatically has registered into the system.