The -x option is required when the MobiLink server is not on the same device as the QAnywhere Agent.
You can specify -x multiple times. This allows you to set up failover to multiple MobiLink servers. When you set up failover,
the QAnywhere Agent attempts to connect to the MobiLink servers in the order in which you enter them on the command line.
The QAnywhere Agent also has a Listener that receives notifications from the MobiLink server that messages are available at
the server for transmission to the client. This Listener only uses the first MobiLink server that is specified, and does not
fail over to others.