Recorded announcement types
Issue 1.0 May 2003
371
Recorded announcement types
The switch supports several recorded announcement types. Each support announcement
type is described below.
Analog line types
If you are using an analog line, then it is required that you use an external announcement
machine for recorded announcements. The external announcement machine must be
connected by an analog line port.
Analog
The analog announcement type provides an analog voice terminal interface via an analog
line port for use with an announcement/audio source device that emulates analog voice
terminals. The switch starts playback by applying ringing; the device indicates playback
has stopped by going on-hook (opening the loop). The switch does not indicate to the
device to stop playback. Use the analog type for announcements that play for a specific
period and then go on-hook at the end. When the device goes on-hook to indicate that the
playback ended, the caller listening to the announcement hears a click. (See ds1, aux-trk,
or integrated types for alternative types).
Analog-fd
Like the analog type, analog-fd provides an analog line interface and ringing starts the
playback. However, a forward disconnect signal (open loop for about one-half second) is
sent to the device to stop playback when there are no callers left to hear it.
Analog-m
Like the analog type, analog-m provides an analog line interface. However, ringing is not
applied to start playback. Use this type for continuous playing music or audio sources. The
device stays in an off-hook state when active and goes on-hook when it is not playing, is
turned off, or is disconnected. This announcement type is used when the
Q
field is set to
b to provide barge-in repeating or continuous-play announcements.
DS1 types
The DS1 types provide analog-like interfaces via DS1 line ports, which are called Line Side
DS1 or Line Side T1. Each of these types indicate to the announcement, music, or audio-
source device to start playback via the Line Side T1 equivalent of ringing. The DS1 types
also expect off-hook from the device to indicate that the playback is active and on-hook to
indicate that the playback is not active.
