HTTP Destination in Proxies

Hi all,

In ABAP Server Proxies (inbound) scenario, I have found that HTTP (type H) connection has been created, instead of R/3 Connection (type 3) to SAP from XI.

Please let me know the advantages of using such connection type H instead of connection type 3 in SM59 in case of Inbound ABAP proxies.

Thanks in advance.

Regards

Krishna.