Tieline Bridge-IT, User Manual

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© Tieline Research Pty. Ltd. 2019
Bridge-IT Manual v4.0
Important Note: Program level rules intended to activate dialing are not valid in Answer
only programs or audio streams.
2. Click Save Program to complete configuration of the program.
3. Click Finish to exit the wizard.
4. Configure multicast server and multicast client programs and load all codecs with the
appropriate program. Select and connect audio streams in a program using the
Connections panel , or dial the program manually using the codec front panel. Dial the
multicast server program connection first and then connect multicast client codec
programs to begin receiving multicast streams.
16.8 Configuring Multicast Server Programs
How Multicasting Works
Multicast transmissions are sent using a dedicated IP multicast address that looks similar to a
regular IP address and multicast subscribers request transmissions from this address. This unique
address allows multicast routers to identify multicast requests from a group of codecs interested in
a particular transmission and packets are replicated depending on demand. This can create large
demands on network bandwidth if the multicast group is significant in size.
As a result, only small sections of the internet are multicast enabled and many internet service
providers (ISPs) block multicast traffic over wide area networks. This restricts most multicast
broadcasts to private local area networks. Some ISPs provide quality of service (QoS) priority to
multicast streams for an increased service charge. You need to check with your ISP to find out
what multicast services, if any, are available over WANs.
Important Notes:
· When a connection is dialed Tieline codecs normally use session data to configure
settings like the algorithm, connection bit rate and sample rate etc. Multicast
connections are sessionless and do not use Tieline session data. As a result, it is
imperative that all codecs are configured with the same connection settings prior to
connecting, or they will not be able to join multicast streaming sessions.
·
Automatic or fixed jitter buffer settings can be adjusted on individual client codecs as
required. There is no jitter buffer setting on the server codec because it never receives
audio packets.
Prerequisites:
· Bridge-IT firmware v.1.01.00 r4219 or higher.
· G3 codec firmware v.1.6.56 or higher (if connecting to a G3 codec).
·
ToolBox web-GUI v.1.2.2.3 or higher.