📄 003_39.htm

📁 通讯类的标准。对要开发SS7的朋友有很大帮助的。（通讯协议）
💻 HTM
字号:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<!-- saved from url=(0059)http://www.chinagk.org/technology/IPTech/003/css/003_39.htm -->
<HTML><HEAD><TITLE>003_39</TITLE>
<META http-equiv=Content-Type content="text/html; charset=gb2312">
<STYLE type=text/css>.pg {
	LEFT: 0px; WIDTH: 635px; POSITION: absolute; TOP: 0px; HEIGHT: 983px
}
BODY {
	FONT-SIZE: 11px; COLOR: #000000; FONT-FAMILY: ""; BACKGROUND-COLOR: #ffffff
}
A {
	TEXT-DECORATION: none
}
.ps0 {
	LEFT: 534px; WIDTH: 36px; POSITION: absolute; TOP: 102px
}
.ps1 {
	LEFT: 115px; WIDTH: 101px; POSITION: absolute; TOP: 127px
}
.ps2 {
	LEFT: 378px; WIDTH: 77px; POSITION: absolute; TOP: 127px
}
.ps3 {
	LEFT: 115px; WIDTH: 53px; POSITION: absolute; TOP: 147px
}
.ps4 {
	LEFT: 378px; WIDTH: 53px; POSITION: absolute; TOP: 147px
}
.ps5 {
	LEFT: 115px; WIDTH: 64px; POSITION: absolute; TOP: 163px
}
.ps6 {
	LEFT: 378px; WIDTH: 43px; POSITION: absolute; TOP: 163px
}
.ps7 {
	LEFT: 115px; WIDTH: 64px; POSITION: absolute; TOP: 179px
}
.ps8 {
	LEFT: 378px; WIDTH: 64px; POSITION: absolute; TOP: 179px
}
.ps9 {
	LEFT: 115px; WIDTH: 53px; POSITION: absolute; TOP: 195px
}
.ps10 {
	LEFT: 378px; WIDTH: 43px; POSITION: absolute; TOP: 195px
}
.ps11 {
	LEFT: 115px; WIDTH: 53px; POSITION: absolute; TOP: 211px
}
.ps12 {
	LEFT: 378px; WIDTH: 43px; POSITION: absolute; TOP: 211px
}
.ps13 {
	LEFT: 115px; WIDTH: 53px; POSITION: absolute; TOP: 227px
}
.ps14 {
	LEFT: 378px; WIDTH: 43px; POSITION: absolute; TOP: 227px
}
.ps15 {
	LEFT: 38px; WIDTH: 260px; POSITION: absolute; TOP: 260px
}
.ps16 {
	LEFT: 65px; WIDTH: 529px; POSITION: absolute; TOP: 296px
}
.ps17 {
	LEFT: 38px; WIDTH: 555px; POSITION: absolute; TOP: 317px
}
.ps18 {
	LEFT: 38px; WIDTH: 557px; POSITION: absolute; TOP: 338px
}
.ps19 {
	LEFT: 38px; WIDTH: 556px; POSITION: absolute; TOP: 358px
}
.ps20 {
	LEFT: 38px; WIDTH: 293px; POSITION: absolute; TOP: 379px
}
.ps21 {
	LEFT: 54px; WIDTH: 278px; POSITION: absolute; TOP: 31px
}
.ps22 {
	LEFT: 545px; WIDTH: 43px; POSITION: absolute; TOP: 63px
}
.ft0 {
	FONT-SIZE: 12px
}
.ft1 {
	FONT-SIZE: 10px; FONT-FAMILY: "Times New Roman",Times,serif
}
.ft3 {
	FONT-SIZE: 15px; FONT-FAMILY: Arial,Helvetica,sans-serif
}
.ft4 {
	FONT-SIZE: 13px
}
.ft5 {
	FONT-WEIGHT: bold; FONT-SIZE: 37px; FONT-STYLE: italic; FONT-FAMILY: "Times New Roman",Times,serif
}
.ft6 {
	FONT-SIZE: 21px; COLOR: #000000; FONT-STYLE: italic; FONT-FAMILY: ""
}
.em0 {
	FONT-SIZE: 11px; FONT-FAMILY: "Times New Roman",Times,serif
}
.em1 {
	FONT-WEIGHT: normal; FONT-SIZE: 11px; FONT-STYLE: italic
}
.em2 {
	FONT-SIZE: 11px; FONT-FAMILY: ""
}
.em3 {
	FONT-SIZE: 16px; FONT-FAMILY: ""
}
.em4 {
	FONT-WEIGHT: normal; FONT-SIZE: 13px; FONT-STYLE: italic; FONT-FAMILY: ""
}
.im0 {
	LEFT: 37px; WIDTH: 558px; POSITION: absolute; TOP: 118px
}
.im1 {
	LEFT: 37px; WIDTH: 558px; POSITION: absolute; TOP: 142px
}
.im2 {
	LEFT: 37px; WIDTH: 558px; POSITION: absolute; TOP: 242px
}
.im3 {
	LEFT: 36px; WIDTH: 562px; POSITION: absolute; TOP: 23px
}
</STYLE>

<META content="MSHTML 6.00.2600.0" name=GENERATOR></HEAD>
<BODY>
<DIV class=pg></DIV><!-- bitmap and vector images are written here -->
<DIV class=im0><IMG height=3 src="003_39.files/003_39_1.jpg" width=558 
border=0></DIV>
<DIV class=im1><IMG height=2 src="003_39.files/003_39_2.jpg" width=558 
border=0></DIV>
<DIV class=im2><IMG height=3 src="003_39.files/003_39_3.jpg" width=558 
border=0></DIV>
<DIV class=im3><IMG height=64 src="003_39.files/left.jpg" width=564 
border=0></DIV><!-- text starts here --><SPAN class=ps0><NOBR><SPAN 
class=ft0>（续）</SPAN></NOBR></SPAN> <SPAN class=ps1><NOBR><SPAN 
class=ft1>Q.931<SPAN class=em2>呼叫方</SPAN>(SETUP)</SPAN></NOBR></SPAN> <SPAN 
class=ps2><NOBR><SPAN class=ft1>SS7 ISUP (IAM)</SPAN></NOBR></SPAN> <SPAN 
class=ps3><NOBR>被叫方号码</NOBR></SPAN> <SPAN class=ps4><NOBR>被叫方号码</NOBR></SPAN> 
<SPAN class=ps5><NOBR>被叫方子地址</NOBR></SPAN> <SPAN 
class=ps6><NOBR>访问传输</NOBR></SPAN> <SPAN class=ps7><NOBR>过渡网络选择</NOBR></SPAN> 
<SPAN class=ps8><NOBR>过渡网络选择</NOBR></SPAN> <SPAN 
class=ps9><NOBR>低层兼容性</NOBR></SPAN> <SPAN class=ps10><NOBR>访问传输</NOBR></SPAN> 
<SPAN class=ps11><NOBR>高层兼容性</NOBR></SPAN> <SPAN 
class=ps12><NOBR>访问传输</NOBR></SPAN> <SPAN class=ps13><NOBR>进度指示器</NOBR></SPAN> 
<SPAN class=ps14><NOBR>访问传输</NOBR></SPAN> <SPAN class=ps15><NOBR><SPAN 
class=ft3>3.5 &nbsp;&nbsp;<SPAN 
class=em3>关于混合网络语音电话的结束语</SPAN></SPAN></NOBR></SPAN> <SPAN 
class=ps16><NOBR><SPAN 
class=ft4>在本节中，我们讨论了一些简单的例子，它们说明了早期设计信令协议协作时涉及到的</SPAN></NOBR></SPAN> <SPAN 
class=ps17><NOBR><SPAN class=ft4>复杂度的冰山之一角。为了保留人们已经习惯的高质量电话服务的“感受”，<SPAN 
class=em0>VoIP</SPAN>需要以透明</SPAN></NOBR></SPAN> <SPAN class=ps18><NOBR><SPAN 
class=ft4>的方式和<SPAN class=em0>PSTN</SPAN>一起工作。<SPAN 
class=em0>SS7</SPAN>服务如此之多，以致于在短期内不能期望公用网上的任何<SPAN 
class=em0>VoIP</SPAN></SPAN></NOBR></SPAN> <SPAN class=ps19><NOBR><SPAN 
class=ft4>应用能够取代<SPAN class=em0>SS7</SPAN>信令。使消费者市场迅速接受<SPAN 
class=em0>VoIP</SPAN>的最好和最保险的方法是：在一些不需要</SPAN></NOBR></SPAN> <SPAN 
class=ps20><NOBR><SPAN class=ft4>创新的领域内，使用<SPAN 
class=em0>PSTN</SPAN>已有性能的杠杆作用。</SPAN></NOBR></SPAN> <SPAN 
class=ps21><NOBR><SPAN class=ft5>138&nbsp;&nbsp;<SPAN class=em1>IP </SPAN><SPAN 
class=em4>电话技术：稳定的</SPAN><SPAN class=em1>VoIP</SPAN><SPAN 
class=em4>服务集成</SPAN></SPAN></NOBR></SPAN> <SPAN class=ps22><NOBR><SPAN 
class=ft6>文档</SPAN></NOBR></SPAN> </BODY></HTML>
⌨️ 快捷键说明

复制代码 Ctrl + C
搜索代码 Ctrl + F
全屏模式 F11
切换主题 Ctrl + Shift + D
显示快捷键 ?
增大字号 Ctrl + =
减小字号 Ctrl + -