An Auto-Attendant (Automated Attendant or AA, or Virtual
Receptionst) allows callers to be automatically transferred to an extension
without the intervention of an operator or receptionist.
Auto-Attendants are usually used in telephony systems, they automatically
greet the callers with a prerecorded message and then instructs them, based upon
some menu options, to press the appropriate keys on their telephones to access
different departments, individuals, or services.
If the wanted extension is not available, then the AA can transfer us to the
belonging voicemail account to leave a message.
Auto-attendants are usually built-in to IP PBXs, because most businesses
greatly benefit from using them. Mainly because AAs help to reduce the costs of
the companies with replacing human operators, secondly with increasing the number
of clients that can be handled simultaneously.