Legacy Merge FQDN
The Access Edge Pool internal FQDN is used for a variety of scenarios where internal users communicate with external users for federation, remote user access, and public IM connectivity. If a load-balanced Edge Server was deployed in your legacy environment, enter the fully qualified domain name (FQDN) of the internal load balancer.
The Internal SIP access port value of 5061 is the default Transmission Control Protocol (TCP) SIP port for communicating with clients, legacy Front End pools and servers. If the default value was not used, update the Internal SIP access port: value.