A group of users can be created with a purpose of receiving voice announcements through the speaker of a telephone set, but it has to be in the waiting mode.
Cisco SPA112 is a dual-port voice adapter, which provides high quality VoIP services with wide set of features through a broadband Internet connection. It is easy to install and use, it works on an IP network connecting fax machines and analog phones to VoIP service providers and provides support for any additional LAN connections.