SIPRFC定义了两种类型的代理服务器，有状态代理服务器和无状态代理服务器。

The SIP RFC defines two types of Proxy Servers, one stateful and one stateless.

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SIPRFC定义了两种类型的代理服务器，有状态代理服务器和无状态代理服务器。

The SIP RFC defines two types of Proxy Servers, one stateful and one stateless.

youdao