A packet will then have an IP header (20 octets), a UDP header (8 octets), and an RTP header (12 octets) for a total of 40 octets.
整个IP分组包括一个20字节的IP报头，一个8字节的UDP报头和一个12字节的RTP报头，报头总长度为40个字节。
The overriding objective of the project is to gain back more than 60% of the IP while spending significantly less than 40% of the IP costs.
该项目最重要的目标是以小于初始产量成本40%的费用获得大于60%的初始产量。
More than 40% telephone charges in large corporations are the result of fax transmissions. Using IP networks to route fax calls can save a significant amount of money.
大公司中40%以上的电话费是发传真的结果，利用IP网络路由传真呼叫可以节省大量的金钱。
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