After the traversal between public and private networks is configured and interconnection is implemented in a CloudEC6.X delivery, some software clients occasionally fail to join conferences.
1. Check the configuration of the SBC, USM, and ECS.
It is found that the configuration is normal. Software clients in external
networks cannot be connected only at a certain probability.
2. The customer is asked to check the network and firewall configurations for several times, and modifies the configurations as required.
3. Check the SBC license and find that no encryption license is configured.
The SBC encryption license must be configured for the traversal between public and private networks in CloudEC6.X.