Feature Guide References3.2.1.3 Automated Attendant (AA)3.2.1.15 Custom Service3.2.1.19 Fax Service3.2.1.25 Interview Service3.2.1.44 Transfer to Mailbox3.2.1.46 Voice Mail Service3.2.1.46 Voice Mail ServiceDescriptionIs a message recording service that allows callers to leave messages for subscribers. They can dial mailboxnumbers directly or "spell" the name of the desired party using the dial keys on their telephones(® 3.2.1.16 Dialling by Name). Once the caller has dialled an appropriate number, the Unified Messagingsystem transfers the caller to the party.Callers will reach Voice Mail service when:a. The Incoming Call Service of a trunk group or port is set to "Voice Mail Service".® 22.1 UM Configuration—[3-1] UM Extension / Trunk Service—Service Group— Day, Night, Lunch,and Break Mode - Incoming Call Serviceb. The call service of a Holiday is set to "Voice Mail Service".® 23.4 UM Configuration—[4-4] Service Settings—Holiday Table— Servicec. They press [#6] (Voice Mail Service Access Command) during a call.d. A Custom Service or Personal Custom Service option is set to transfer callers to Voice Mail service.® 20.1.2 UM Configuration—[1-2] Mailbox Settings—Full Setting—External MSG Delivery/Auto FWD/Personal Custom Serv— Personal Custom Service® 23.3 UM Configuration—[4-3] Service Settings—Custom Servicee. A subscriber transfers the caller to Voice Mail service.PC Programming Manual ReferencesSection 22 UM Configuration—[3] UM Extension / Trunk ServiceFeature Guide 2953.2.1 System Features