Epiphan Pearl Mini Live Video Production System with 512GB SSD (NA/JP) - Manual (Page 249)

Pearl Mini User Guide About streaming using SRT
Pearl Mini as SRT source encoders in a multiple-source setup.
Before content is streamed between the SRT source and destination, a communication link must be established
between them for SRT control and recovery packets. Any firewalls blocking the path must be traversed.
SRT streaming modes and firewalls
Streaming through firewalls can be a challenge. With SRT you get easy firewall traversal with little to no IT
involvement.
SRT offers three modes to simplify the process: Rendezvous, Caller, and Listener.
l Rendezvous mode is the easiest to setup and usually doesn't need any intervention from your IT
administrator for the SRT stream from the source to traverse the firewall to the destination. The SRT
source and destination devices must use the same SRT port value, see
Set up an SRT stream using
rendezvous mode .
l Caller and Listener modes work together to establish the SRT connection between your source and
destination devices when traversing the firewall is difficult. In this case, your IT network administrator must
configure the network to allow traffic that comes in on the port configured for SRT streaming and forward
the traffic to the destination device, see
Set up an SRT stream using caller and listener modes .
The device you set as the Caller (or Listener) is arbitrary, as long as one device is a Listener and the
other is a Caller. To establish the SRT connection between a source and destination device in
rendezvous mode, both devices must be configured and ready to establish the connection between
them.
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