Conditions• This feature is only available for the System Manager.User Manual ReferencesManager Operation2.2.1 System Manager Features— Broadcasting Messages3.2.1.6 Call ServicesDescriptionInclude a series of both incoming and outgoing call services.Incoming Call Services: Automated Attendant service, Voice Mail service, Interview service, Custom Service.Outgoing Call Services: Message Waiting Notification and External Message Delivery.PC Programming Manual References22.1 UM Configuration—[3-1] UM Extension / Trunk Service—Service Group→ Day, Night, Lunch, and Break Mode - Incoming Call Service→ Day, Night, Lunch, and Break Mode - Incoming Call Service Parameter→ Day, Night, Lunch, and Break Mode - Incoming Call Service Prompt3.2.1.7 Call Transfer to OutsideDescriptionEnables the Unified Messaging system to transfer a call to a trunk from the following services:• Custom Service• Call Transfer Service• Personal Custom Service• Caller ID Callback• Call-through ServiceConditions• This feature cannot be used when COS programming does not allow incoming trunk calls to be transferredto a trunk.PC Programming Manual References21.1 UM Configuration—[2] Class of Service—Call Transfer— Call Transfer to Outside24.4 UM Configuration—[5-4] System Parameters—Parameters—Transfer to OutsideUser Manual ReferencesSubscriber Operation1.8.5 Transferring Calls— Assigning and Cancelling Telephone Numbers for Call Transfer to Outside LineFeature Guide 3353.2.1 System Features