The DNS records required to direct to the correct Skype4b server need to be added to internal Servers for proper routing.
If you use split-brain DNS (where your domain name resolves to a different set of DNS servers outside your network than inside), you will have to add these DNS records in both places. In general, the records must be present anywhere a user resolves your DNS domain name.
The four DNS records you must create are as follows:
|Alias Name||Target Host|
SRV (Service) Records