This section describes what is SOAP protocol binding.
The previous chapter shows you how a SOAP message should be constructed. Now let's see how a SOAP message
should be transmitted.
Transmitting a SOAP message requires a communication protocol to carry the message. This is called SOAP
protocol binding. Unfortunately, the basic SOAP 1.2 specification does not define any rules on protocol
binding for any communication protocols.
SOAP protocol binding is defined in SOAP extensions, where a specific SOAP feature or module can define
its own binding rules for specific communication protocols.
