3.7.2 Channel Status1. Click 3.2 Channel Status.2. Confirm the status of each channel referring to the descriptions below.Status DescriptionNot Used The settings for the channel are not configured, or Not Usedis selected in Channel Settings. Refer to "3.4.1 Channel &SIP Telephony".Initial WAN Connection Incomplete WAN connection is incomplete. Check the probable causesbelow and make the necessary corrections:• Programming for the WAN interface is incorrect. Referto "3.3.1 WAN Interface".• The WAN port is not connected to the DCE (e.g., ADSLModem) correctly. Refer to "2.2.2 WAN Port Connection".• There is a malfunction on the WAN. For more information,consult your network administrator.SIP Registration Failed After WAN connection is complete, registration to the SIPserver failed. Check the probable causes below and make thenecessary corrections:• The settings for the channel are incorrect. Referto "3.4.1 Channel & SIP Telephony".• The WAN port is not connected to the DCE (e.g., ADSLModem) correctly. Refer to "2.2.2 WAN Port Connection".• There is a malfunction on the WAN. For more information,consult your network administrator.Idle WAN connection and registration to the SIP server arecomplete. The channel is available and in standby status.Busy WAN connection and registration to the SIP server arecomplete. The channel is being used.Document Version 2008-10 Installation Manual 673.7.2 Channel Status