The following DNS records need to be added to your external domain for Jabber registration. Replace example.com with your domain.
priority = 3 weight = 7
port = 8443
svr hostname = collaborate.ct450.com
If you want to use the internet calling features (B2B) of cisco telepresence units you also need to add the following SRV record to your Public DNS. Replace example.com with your domain. This record is not required for Jabber.
target host: collaborate.ct450.com