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<DIV class=im1><IMG height=542 src="001_54.files/46_54_2.jpg" width=460
border=0></DIV><!-- text starts here --><SPAN class=ps0><NOBR>v=0</NOBR></SPAN>
<SPAN class=ps1><NOBR>o=me 55667234 768675669 IN IP4 10.0.0.2</NOBR></SPAN>
<SPAN class=ps2><NOBR>s=Book Review</NOBR></SPAN> <SPAN
class=ps3><NOBR>i=Discussion of Book Issues</NOBR></SPAN> <SPAN
class=ps4><NOBR>e=wd@dflx.com</NOBR></SPAN> <SPAN class=ps5><NOBR>t=<start
time><stop time></NOBR></SPAN> <SPAN class=ps6><NOBR>m=audio 4657
RTP/AVP 0</NOBR></SPAN> <SPAN class=ps7><NOBR>9. SIP<SPAN
class=em1>典型包解码</SPAN></NOBR></SPAN> <SPAN class=ps8><NOBR><SPAN
class=ft1>图<SPAN class=em2>1-30</SPAN>中是使用<SPAN
class=em2>HP</SPAN>因特网监视器对一条<SPAN
class=em2>REGISTER</SPAN>消息进行解码的结果。</SPAN></NOBR></SPAN> <SPAN
class=ps9><NOBR><SPAN class=ft2>图<SPAN class=em3>1-30 SIP
REGISTER</SPAN>消息</SPAN></NOBR></SPAN> <SPAN class=ps10><NOBR>REGISTER<SPAN
class=em4>消息将</SPAN>From<SPAN class=em4>、</SPAN>To<SPAN
class=em4>、</SPAN>Cseq<SPAN class=em4>、</SPAN>Call-ID<SPAN
class=em4>和</SPAN>Via<SPAN class=em4>作为强制参数。</SPAN>Cseq<SPAN
class=em4>参数标识一次会话,</SPAN></NOBR></SPAN> <SPAN class=ps11><NOBR><SPAN
class=ft1>帮助服务器和呼叫代理将一个事务处理中的请求和应答联系起来。图<SPAN class=em2>1-31</SPAN>中还包括了用<SPAN
class=em2>IA</SPAN>分</SPAN></NOBR></SPAN> <SPAN class=ps12><NOBR><SPAN
class=ft3>54 <SPAN class=em0>IP </SPAN><SPAN
class=em5>电话技术:稳定的</SPAN><SPAN class=em0>VoIP</SPAN><SPAN
class=em5>服务集成</SPAN></SPAN></NOBR></SPAN> <SPAN class=ps13><NOBR><SPAN
class=ft4>文档</SPAN></NOBR></SPAN> </BODY></HTML>
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