SOAP is one such protocol; it defines an XML-based encoding and enveloping standard for system-to-system communication.

SOAP就是这样一种协议，它为系统对系统通信定义了一个基于XML的编码和封装的标准。

youdao

In the same way, bindings can be used on SCA references to call services using a standard communication protocol.

同样，绑定也可以用于SCA引用上，让其通过标准的交互协议去调 用外部服务。

youdao

In this case the roles are reversed; the client is implemented using SCA, and the service USES some standard communication protocol.

这种情况下角色正好倒置：客户端由SCA实现，而服务端使用标准的交互协议。

youdao

Silent Phone deploys the ZRTP peer-to-peer encryption protocol which is recognized as the leading standard for secure end-to-end communication in a Voice over Internet Protocol (VoIP) telephone call.

FORBES: Silent Circle Adds Android For Encrypted Voice And Video Calls