Telephones can contact uaCSTA Server for SIP Phones through two different network interfaces. Both interfaces support TCP and TLS connections. UDP is not supported because of problems with packet fragmentation in the large CSTA messages. For TLS connections, a certificate issued to the computer name must be provided, which trusts the telephones.
With the WAN interface, an IP address different from the DNS name can be stored in the port setting. Enter the public IP address (DNS-Name) port through which uaCSTA Server for SIP Phones will be accessible from the Internet. If the computer does not have a public IP interface itself, the entries will not be needed here.
You can only make changes to the connection settings when the Server Service
has been shut down.
Login information for the telephones
When the telephone has been registered with uaCSTA Server for SIP Phones, it must use the access information configured here. The MAC address for the telephone will be expected as the user name. The password can be set from here. If you use the Provisioning feature provided in the administrator, the access information and connection parameters configured here will automatically be provided to the telephone.