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📁 通讯类的标准。对要开发SS7的朋友有很大帮助的。（通讯协议）
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<BODY>
<DIV class=pg></DIV><!-- bitmap and vector images are written here -->
<DIV class=im0><IMG height=2 src="003_28.files/003_28_1.jpg" width=558 
border=0></DIV>
<DIV class=im1><IMG height=764 src="003_28.files/003_28_2.jpg" width=561 
border=0></DIV>
<DIV class=im2><IMG height=64 src="003_28.files/right.jpg" width=563 
border=0></DIV><!-- text starts here --><SPAN class=ps0><NOBR><SPAN 
class=ft0>第<SPAN class=em3>3</SPAN>章&nbsp;语音电话的基本呼叫控制</SPAN></NOBR></SPAN> <SPAN 
class=ps1><NOBR><SPAN class=ft1>127</SPAN></NOBR></SPAN> <SPAN 
class=ps2><NOBR><SPAN class=ft2>表<SPAN class=em4>3-9 
&nbsp;&nbsp;</SPAN>基本音频请求配置的请求信息流举例</SPAN></NOBR></SPAN> <SPAN 
class=ps3><NOBR>指令<SPAN class=em0>/</SPAN>响应</NOBR></SPAN> <SPAN 
class=ps4><NOBR>参</NOBR></SPAN> <SPAN class=ps5><NOBR>数</NOBR></SPAN> <SPAN 
class=ps6><NOBR>语法说明</NOBR></SPAN> <SPAN class=ps7><NOBR><SPAN 
class=ft4>RQNT</SPAN></NOBR></SPAN> <SPAN class=ps8><NOBR>（从<SPAN 
class=em0>MGC</SPAN>到端点</NOBR></SPAN> <SPAN class=ps9><NOBR>的消息）</NOBR></SPAN> 
<SPAN class=ps10><NOBR>（<SPAN class=em0>1</SPAN>）</NOBR></SPAN> <SPAN 
class=ps11><NOBR><SPAN class=ft4>ACK</SPAN></NOBR></SPAN> <SPAN 
class=ps12><NOBR>（端点响应）</NOBR></SPAN> <SPAN class=ps13><NOBR>（<SPAN 
class=em0>2</SPAN>）</NOBR></SPAN> <SPAN class=ps14><NOBR><SPAN 
class=ft4>NTFY</SPAN></NOBR></SPAN> <SPAN class=ps15><NOBR><SPAN 
class=ft4>(<SPAN class=em1>从呼叫端点到</SPAN></SPAN></NOBR></SPAN> <SPAN 
class=ps16><NOBR><SPAN class=ft4>MGC<SPAN 
class=em1>的消息</SPAN>)</SPAN></NOBR></SPAN> <SPAN class=ps17><NOBR>（<SPAN 
class=em0>3</SPAN>）</NOBR></SPAN> <SPAN class=ps18><NOBR><SPAN 
class=ft4>ACK</SPAN></NOBR></SPAN> <SPAN class=ps19><NOBR>（从<SPAN 
class=em0>MGC</SPAN>到呼叫</NOBR></SPAN> <SPAN class=ps20><NOBR>端点）</NOBR></SPAN> 
<SPAN class=ps21><NOBR>（<SPAN class=em0>4</SPAN>）</NOBR></SPAN> <SPAN 
class=ps22><NOBR><SPAN class=ft4>CRCX</SPAN></NOBR></SPAN> <SPAN 
class=ps23><NOBR>（从<SPAN class=em0>MGC</SPAN>到呼叫</NOBR></SPAN> <SPAN 
class=ps24><NOBR>端点的消息）</NOBR></SPAN> <SPAN class=ps25><NOBR>（<SPAN 
class=em0>5</SPAN>）</NOBR></SPAN> <SPAN class=ps26><NOBR><SPAN 
class=ft4>ACK</SPAN></NOBR></SPAN> <SPAN class=ps27><NOBR><SPAN class=ft4>(<SPAN 
class=em1>从呼叫端点到</SPAN></SPAN></NOBR></SPAN> <SPAN class=ps28><NOBR><SPAN 
class=ft4>MGC)</SPAN></NOBR></SPAN> <SPAN class=ps29><NOBR><SPAN 
class=ft4>(6)</SPAN></NOBR></SPAN> <SPAN class=ps30><NOBR>注意：当<SPAN 
class=em0>ACK</SPAN>对<SPAN class=em0>CRCX</SPAN>命令作出响应时，会返回<SPAN 
class=em0>SDP</SPAN>数据串，此<SPAN class=em0>SDP</SPAN>数据串具有产生端点的媒体能力。<SPAN 
class=em0>CRCX</SPAN>不</NOBR></SPAN> <SPAN class=ps31><NOBR>发送<SPAN 
class=em0>SDP</SPAN>。</NOBR></SPAN> <SPAN class=ps32><NOBR>通知请求，事务处理<SPAN 
class=em0>ID</SPAN>为<SPAN class=em0>56<SPAN 
class=em1>，</SPAN></SPAN>端点</NOBR></SPAN> <SPAN class=ps33><NOBR>名称，协议<SPAN 
class=em0>MGCP 0.1</SPAN>版</NOBR></SPAN> <SPAN class=ps34><NOBR>在<SPAN 
class=em0>U D P</SPAN>端口<SPAN class=em0>5 6 7 8</SPAN>上发送通知到</NOBR></SPAN> <SPAN 
class=ps35><NOBR><SPAN class=ft4>mgc@youfavorite.net<SPAN 
class=em1>。端点通过</SPAN>DNS<SPAN class=em1>查</SPAN></SPAN></NOBR></SPAN> <SPAN 
class=ps36><NOBR>找或者其他途径，必须将域名解析成<SPAN class=em0>IP</SPAN></NOBR></SPAN> <SPAN 
class=ps37><NOBR>地址，否则必须提供一个<SPAN class=em0>IP</SPAN>地址</NOBR></SPAN> <SPAN 
class=ps38><NOBR>请求<SPAN class=em0>ID</SPAN></NOBR></SPAN> <SPAN 
class=ps39><NOBR>通知<SPAN class=em0>MGC<SPAN 
class=em1>：</SPAN></SPAN>观察到摘机</NOBR></SPAN> <SPAN 
class=ps40><NOBR>端点接受通知请求</NOBR></SPAN> <SPAN class=ps41><NOBR>通知，事务处理<SPAN 
class=em0>ID503<SPAN class=em1>，</SPAN></SPAN>端点名称，</NOBR></SPAN> <SPAN 
class=ps42><NOBR>协议<SPAN class=em0>MGCP0.1</SPAN>版（我们不打算重复协议</NOBR></SPAN> <SPAN 
class=ps43><NOBR>说明）</NOBR></SPAN> <SPAN class=ps44><NOBR>通知实体是一样的</NOBR></SPAN> 
<SPAN class=ps45><NOBR>请求<SPAN class=em0>ID</SPAN></NOBR></SPAN> <SPAN 
class=ps46><NOBR>观察事件：断开指令</NOBR></SPAN> <SPAN class=ps47><NOBR><SPAN 
class=ft4>MGC<SPAN class=em1>接收到通知</SPAN></SPAN></NOBR></SPAN> <SPAN 
class=ps48><NOBR>建立连接，事务处理<SPAN class=em0>ID1401<SPAN 
class=em1>，</SPAN></SPAN></NOBR></SPAN> <SPAN class=ps49><NOBR><SPAN 
class=ft4>endpoint_name@domain.net<SPAN class=em1>，</SPAN></SPAN></NOBR></SPAN> 
<SPAN class=ps50><NOBR>协议版本</NOBR></SPAN> <SPAN class=ps51><NOBR>呼叫<SPAN 
class=em0>ID</SPAN></NOBR></SPAN> <SPAN class=ps52><NOBR>局部连接选项：</NOBR></SPAN> 
<SPAN class=ps53><NOBR><SPAN class=ft4>packetization 
period=10ms,</SPAN></NOBR></SPAN> <SPAN class=ps54><NOBR><SPAN class=ft4>audio 
type=PCM &micro;Law</SPAN></NOBR></SPAN> <SPAN 
class=ps55><NOBR>连接模式：只接收模式（半双工的）</NOBR></SPAN> <SPAN 
class=ps56><NOBR>通知实体</NOBR></SPAN> <SPAN class=ps57><NOBR>请求<SPAN 
class=em0>ID</SPAN></NOBR></SPAN> <SPAN 
class=ps58><NOBR>摘机令，与要求事件的数字匹配。</NOBR></SPAN> <SPAN 
class=ps59><NOBR>这是一个合成指令，因为它请求建立连</NOBR></SPAN> <SPAN 
class=ps60><NOBR>接，而且也包含了一个通知请求（这条</NOBR></SPAN> <SPAN class=ps61><NOBR>指令在<SPAN 
class=em0>MGCP</SPAN>规范中是允许的）</NOBR></SPAN> <SPAN 
class=ps62><NOBR>拨号设计中的数字映射</NOBR></SPAN> <SPAN class=ps63><NOBR>信号<SPAN 
class=em0>:</SPAN>拨号音频</NOBR></SPAN> <SPAN class=ps64><NOBR>用<SPAN 
class=em0>I=</SPAN>连接<SPAN class=em0>ID,MGC</SPAN>接受通知。</NOBR></SPAN> <SPAN 
class=ps65><NOBR><SPAN class=ft4>SDP<SPAN 
class=em1>参数是：</SPAN></SPAN></NOBR></SPAN> <SPAN class=ps66><NOBR>协议版本＝<SPAN 
class=em0>0</SPAN>，</NOBR></SPAN> <SPAN class=ps67><NOBR>网络类型＝<SPAN 
class=em0>IN,IP</SPAN>协议<SPAN class=em0>v4,</SPAN></NOBR></SPAN> <SPAN 
class=ps68><NOBR><SPAN class=ft4>IP<SPAN 
class=em1>地址是</SPAN>10.1.70.15</SPAN></NOBR></SPAN> <SPAN 
class=ps69><NOBR>模式＝音频，<SPAN class=em0>RTP</SPAN>端点＝<SPAN 
class=em0>3456</SPAN>，</NOBR></SPAN> <SPAN class=ps70><NOBR>音频配置<SPAN 
class=em0>0<SPAN class=em1>（</SPAN>PCM &micro;Law<SPAN 
class=em1>）</SPAN></SPAN></NOBR></SPAN> <SPAN class=ps71><NOBR><SPAN 
class=ft4>56aaln/1@yourfavorite.net MGCP0.1</SPAN></NOBR></SPAN> <SPAN 
class=ps72><NOBR><SPAN class=ft4>N<SPAN 
class=em1>：</SPAN>mgc@youfavorite.net:5678</SPAN></NOBR></SPAN> <SPAN 
class=ps73><NOBR><SPAN class=ft4>X<SPAN 
class=em1>：</SPAN>ABCD56</SPAN></NOBR></SPAN> <SPAN class=ps74><NOBR><SPAN 
class=ft4>R<SPAN class=em1>：</SPAN>hd</SPAN></NOBR></SPAN> <SPAN 
class=ps75><NOBR><SPAN class=ft4>200 56 OK</SPAN></NOBR></SPAN> <SPAN 
class=ps76><NOBR><SPAN class=ft4>503aaln/1@yourfavorite.net 
MGCP0.1</SPAN></NOBR></SPAN> <SPAN class=ps77><NOBR><SPAN class=ft4>N<SPAN 
class=em1>：</SPAN>mgc@youfavorite.net:5678</SPAN></NOBR></SPAN> <SPAN 
class=ps78><NOBR><SPAN class=ft4>X<SPAN 
class=em1>：</SPAN>ABCD56</SPAN></NOBR></SPAN> <SPAN class=ps79><NOBR><SPAN 
class=ft4>O<SPAN class=em1>：</SPAN>hd</SPAN></NOBR></SPAN> <SPAN 
class=ps80><NOBR><SPAN class=ft4>200 503 OK</SPAN></NOBR></SPAN> <SPAN 
class=ps81><NOBR><SPAN class=ft4>58aaln/1@ec1.yourcarrier.net 
</SPAN></NOBR></SPAN><SPAN class=ps82><NOBR><SPAN 
class=ft4>MGCP0.1</SPAN></NOBR></SPAN> <SPAN class=ps83><NOBR><SPAN 
class=ft4>C<SPAN class=em1>：</SPAN>ABCD3</SPAN></NOBR></SPAN> <SPAN 
class=ps84><NOBR><SPAN class=ft4>L<SPAN class=em1>：</SPAN>p<SPAN 
class=em1>：</SPAN>10<SPAN class=em1>，</SPAN>a<SPAN 
class=em1>：</SPAN>PCMU</SPAN></NOBR></SPAN> <SPAN class=ps85><NOBR><SPAN 
class=ft4>M<SPAN class=em1>：</SPAN>recvonly</SPAN></NOBR></SPAN> <SPAN 
class=ps86><NOBR><SPAN class=ft4>N<SPAN 
class=em1>：</SPAN>mgc@yourfavorite.net:5678</SPAN></NOBR></SPAN> <SPAN 
class=ps87><NOBR><SPAN class=ft4>X<SPAN 
class=em1>：</SPAN>ABCD57</SPAN></NOBR></SPAN> <SPAN class=ps88><NOBR><SPAN 
class=ft4>R<SPAN class=em1>：</SPAN>hd<SPAN class=em1>，</SPAN>[0-9<SPAN 
class=em1>＃*</SPAN></SPAN></NOBR></SPAN> <SPAN class=ps89><NOBR><SPAN 
class=ft4>T]<SPAN class=em1>（</SPAN>D<SPAN 
class=em1>）</SPAN></SPAN></NOBR></SPAN> <SPAN class=ps90><NOBR><SPAN 
class=ft4>D<SPAN class=em1>：</SPAN>(0T|00T<SPAN 
class=em2>|</SPAN>[2-9]xxxxxx<SPAN class=em2>|</SPAN>1[2-</SPAN></NOBR></SPAN> 
<SPAN class=ps91><NOBR><SPAN class=ft4>9]xxxxxxxxx<SPAN 
class=em2>|</SPAN>011xx.T)</SPAN></NOBR></SPAN> <SPAN class=ps92><NOBR><SPAN 
class=ft4>S:dl</SPAN></NOBR></SPAN> <SPAN class=ps93><NOBR><SPAN class=ft4>200 
58 OK</SPAN></NOBR></SPAN> <SPAN class=ps94><NOBR><SPAN 
class=ft4>I:00053C</SPAN></NOBR></SPAN> <SPAN class=ps95><NOBR><SPAN 
class=ft4>v=0</SPAN></NOBR></SPAN> <SPAN class=ps96><NOBR><SPAN class=ft4>c=IN 
IP4 10.1.70.15</SPAN></NOBR></SPAN> <SPAN class=ps97><NOBR><SPAN 
class=ft4>m=audio 3456 RTP/AVP 0</SPAN></NOBR></SPAN> <SPAN 
class=ps98><NOBR><SPAN class=ft5>文档</SPAN></NOBR></SPAN> </BODY></HTML>
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