By default, SIP data, which includes Unified Messaging server settings and other call information that is sent from a Unified Messaging server to a Client Access server, is not encrypted.

• 默认情况下,不对SIP数据进行加密,SIP数据包括统一消息服务器设置以及从统一消息服务器发送到客户端访问服务器的其他呼叫信息。