MMChapter 2, Getting Started6 Aastra – 2742-002No Service MessageSee Appendix B, No Service for information.Network DisconnectedSee Appendix B, Network Disconnected for information.35i Keys and FunctionsIcom Key(Intercom)Services KeyXfer Key(Transfer)Conf Key(Conference) Four Line Appearances3 DynamicContext-SensitiveSoftkeysSpeakerKeyMute KeyVolumeAdjustmentBarNavigation KeysHold KeyIncomingCall/MessageWaitingLamps Redial KeyGoodbye Key(Hangup)Options Key3 DynamicContext-SensitiveSoftkeys