Digigram IQOYA CALL Series User Manual page 13

FIRST STEPS
BASIC NETWORK REQUIREMENTS
The goal of this chapter is to provide basic info on the network setup necessary for performing tests and
validations of Digigram Contribution Solution (IQOYA *CALL, IQOYA *CALL/LE, IQOYA *MOBILE). Depending
on your infrastructure, this setup may require help from your IT network department.
A. GENERAL NETWORK CONCEPT
In a basic audio over IP contribution setup, the audio streams are usually composed of RTP over UDP packets
sent to an IP address on a given UDP port​ .
As a consequence, any contribution from the internet to a studio infrastructure will probably imply router port
management by ​ o pening some ports for UDP forwarding in the router​ . ​ T his simple operation will allow the
audio stream to reach your equipment in the studio.
What does this mean ?
?
Opening an UDP port for RTP audio means opening 2 ports: one for audio and another for control. The
audio port must be an even value greater than 1024, and the two ports must have consecutive values
(e.g. 5004 and 5005). Moreover, if you plan to use FEC for audio redundancy, you will have to open 4
consecutive ports (e.g. 5004 to 5007).
B. ROUTER MANAGEMENT
Settings for Manual connections
Let's consider an IQOYA *CALL or IQOYA *MOBILE connected to the Internet via a classical Internet box or 3G/4G
link, and a IQOYA *CALL/LE in the studio connected to the studio LAN, protected by a firewall router, as shown in
the diagram next page.
We'll try a basic contribution situation where the remote codec connects to the studio codec.
I QOYA *CALL - IQOYA *CALL/LE
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