50 Aastra MBU 400 Administrator GuideUsing Configuration Files Handset ConfigurationHandsets can be customized with options such as the display name and do not disturbsetting. The phonebooks used by all handsets (the Call Log and Contacts List) can beset as private, or shared between all handsets registered to the same MBU..Call handlingEach handset on the system can be assigned to various call groups for inbound calls, apreferred VoIP line for outbound calls and a primary line (VoIP or landline) foroutbound calls. Call configurations settings can be customized from the handset usingSettings>Telephony settings>Call groups.Call groups can also be assigned from the Aastra Web UI Call Groups page, orspecified in the configuration file.Parameter Values DescriptionCOMMON_PHONEBOOK 0,1 [Private, Common] Makes the Call Log and Contacts List privatefor each handset, or sharded vetween allhandsets.(default=0)JOIN_CALLS_ALLOWED 0,1 [DISABLE, ENABLE] Enables or disables the join calls optionsallowing a handset to join an active call onanother handset.(default =0)HANDSET_1_NAME "Handset 1" The name displayed on the handset. Defaultis Handset 1, Handset 2,..Handset 8.HANDSET_1_CW 0,1 [DISABLE, ENABLE] Enables or disables call waiting on thehandset.(default =1)HANDSET_1_DND 0,1 [DISABLE, ENABLE] Emables or disables DO Not Disturb (DND)on the handset.(default =0)Parameter Values DescriptionCALL_GROUPS1 3 (default = Landline andVoIP line 1)CallGroups1 defines which lines handset 1will subscribe to receive incoming calls from:Bit 0: LandlineBit 1: VoIP line 1….Bit 8: VoIP line 8Bit 9-15: reserved.USER_VOIP_LINE_PP1 1 (default = VoIP line 1) Preferred VoIP line for handset 1. Possiblevalues: line 1-8.Defines which SIP account the handset willmake outgoing VoIP calls on.USER_PRIMARY_LINE_PP1 1 (default = VoIP) Preferred line for outbound calls for handset1.0 = PSTN, 1 = VoIPDefines which line the green hook button willinitiate calls on.FWD_ON_BUSY_ACT_PSTNFWD_ON_BUSY_ACT_0...FWD_ON_BUSY_ACT_7"" (default is blank) Activates call forwarding when the line isbusy for PSTN, SIP Account 1,...SIPAccount 8.