Nortel Networks NN44470-100 manual Continuous streaming, Directory provider, RSS provider

- 24 -

MAS commissioning

Continuous streaming

The MAS platform supports continuous streaming of pretranscoded real-time audio that applications can use to facilitate a radio broadcast effect. With this feature, applications can give sessions music-on-hold streaming or connect the sessions to Internet-streaming radio servers. Multiple sessions can listen to the same real-time audio stream without the cost of transcoding the stream on each session or connecting each session to a remote server.

The MAS platform can stream from the following providers: Directory or RSS. The following sections describe these providers in detail.

To adjust the continuous stream volume, use the Nortel MAS Console to edit the Continuous Streaming Volume Adjustment (dB) property (specify the value in decibels [dB]).

Directory provider

With the directory provider, files in a local directory can be transcoded, cached, and played indefinitely in alphabetic order. Continuous playback is achieved by repeating the sequence. The platform monitors the directory and detects any changes made for dynamic updates.

To configure the Directory Provider you must create a directory inside %BASEDIR%\platdata\StreamSource\ChannelRoot. This directory name is the channel name that the application specifies and is used to stream from this source. Nortel recommends that you place all audio files in this directory.

RSS provider

The RSS provider can retrieve and parse Real Simple Syndication (RSS) documents. The RSS provider downloads the contents of these documents so the directory provider can play them. The RSS provider supports the following features:

•automatic RSS feed synchronization —to automatically add and remove content

•time-to-live attribute—to update content

•fault tolerance—to preserve local files until files are safely downloaded

•MP3 and WAV content types

RSS is a dialect of Extensible Markup Language (XML) and the platform currently supports RSS 2.0. For more information, see the RSS 2.0 specification document at www.rss-specification.com.

The platform is currently limited to RSS documents that are no larger than 260 kbytes. The following illustration shows a sample RSS 2.0 document.

Nortel Media Application Server 6.0 for AS 5300

Fundamentals

NN44470-100 01.01 Standard

Release 6.0 03 June 2008

Copyright © 2008, Nortel Networks