2.1 Transport

Protocol servers need to support SOAP over HTTP. Additionally, protocol servers SHOULD support SOAP over HTTPS for securing communication with protocol clients.

This protocol uses SOAP for formatting requests and responses, as specified in [SOAP1.1] section 4 or as specified in [SOAP1.2-1/2007] section 5. Protocol server faults are returned either by using an HTTP Status Code as specified in [RFC2616] section 10, or by using a SOAP fault, as specified either in [SOAP1.1] section 4.4 or in [SOAP1.2-1/2007] section 5.4.