Transport protocol
Non-transactional replication between sites on different intranets generally uses HTTP
      POST (internet) communication. Non-transactional replication between sites on the same
      intranet does not use HTTP POST; instead, it is handled directly by one application/web server
      and its MSMQ infrastructure.
    When SyteLine communicates with other applications using ION, the transport protocol is ESB. The protocol is specified on the Intranets form.