The ports are dynamic.
This is the FAQ item:
Q When running the RTD client what could be the cause of error 60059 (NIrtd_eDP_FAILURE)?
A The Real Time Data (RTD) client application initiates communication to the Avaya Aura Contact Center server to authenticate. After authentication, parameters are set which will be used in sending statistical data to the client. Subsequently, a new communication channel is opened by Avaya Aura Contact Center to the client. This is the data stream connection used to send data to the client (the Avaya Aura Contact Center component used to send data is the Data Propagator). If the Avaya Aura Contact Center server fails to establish a connection to the RTD client, error 60059 is sent to the RTD client.
It may be the case that communication initiated from the client to Avaya Aura Contact Center works, but communication initiated from Avaya Aura Contact Center to the client fails. This scenario can be common where network firewalls or IP routing are involved. The actual RTD client and Avaya Aura Contact Center server may be working properly, but failure in communication initiated from Avaya Aura Contact Center to the client may be the cause of error 60059.