Announcement Server; Netann Interface; Playing A Local Voice Prompt; Playing Using Http/Nfs Streaming - AudioCodes Mediant 600 User Manual

User's Manual
34

Announcement Server

The device supports playing and recording of announcements (local Voice Prompts or
HTTP streaming) and playing of Call Progress Tones over the IP network. Three different
methods are available for playing and recording announcements:

NetAnn for playing a single announcement (see 'NetAnn Interface' on page 467)

MSCML for playing single or multiple announcements and collecting digits (see
'MSCML Interface' on page 469)
34.1

NetAnn Interface

The device supports playing announcements using NetAnn format (according to RFC
4240).

34.1.1 Playing a Local Voice Prompt

To play a single local Voice Prompt, the Application Server (or any SIP user agent) sends a
regular SIP INVITE message with SIP URI that includes the NetAnn Announcement
Identifier name. For example:
INVITE sip:annc@audiocodes.com; play=file:///12 SIP/2.0
The left part of the SIP URI includes the string 'annc'. In the example above, the device
starts playing announcement number 12 from the internal Voice Prompts file. The following
Voice Prompts file formats are supported:

file:///

file:////

http://<localhost>
The NetAnn Announcement Identifier string is configured by the 'NetAnn Announcement
ID' parameter (NetAnnAnncID), located in the IP Media Settings page (Configuration tab
> VoIP menu > IP Media > IP Media Settings).
Sending a BYE request terminates the SIP session and stops the playing of the
announcement. If the played Voice Prompt reaches its end, the device initiates a BYE
message to notify the Application Server that the session has ended.

34.1.2 Playing using HTTP/NFS Streaming

To play a single announcement via HTTP or NFS streaming, the Application Server (or any
SIP user agent) sends a regular SIP INVITE message with SIP URI that includes the
NetAnn Announcement Identifier name. For example:
INVITE sip:annc@ac.com;
play=http://server.net/gem/Hello.wav
The left part of the SIP URI includes the string 'annc' terminated by the IP address of the
HTTP server, and the name and path of the file to be played. In the example above, the
device starts playing the 'Hello.wav' file that resides in the folder 'server.net/gem'. The
NetAnn Announcement Identifier string is configured by the 'NetAnn Announcement ID'
parameter (NetAnnAnncID), located in the IP Media Settings page (Configuration tab >
VoIP menu > IP Media > IP Media Settings).
Sending a BYE request terminates the SIP session and stops the playing of the
announcement. If the played announcement reaches its end, the device initiates a BYE
message to notify the Application Server that the session is ended.
Version 6.6
SIP/2.0
467
34. Announcement Server
Mediant 600 & Mediant 1000