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<DIV><FONT color=#000000 size=3 face=å®‹ä½“>


<DIV><FONT color=#000000 size=3 face=å®‹ä½“>Hi&nbsp; ï¼š</FONT></DIV>


<DIV>The version of opensips that I used is 1.6.2.</DIV>


<DIV>And in the cookbook of 1.6.2 I get the description below:</DIV>


<DIV>if&nbsp;(is_method("INVITE"))&nbsp; 


<DIV>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{&nbsp;</DIV>


<DIV>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;$var(aline)&nbsp;=&nbsp;$(rb{sdp.line,a,1});&nbsp;</DIV>


<DIV>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;xlog("The&nbsp;second&nbsp;a&nbsp;line&nbsp;in&nbsp;the&nbsp;SDP&nbsp;body&nbsp;is&nbsp;$var(aline)\n");&nbsp;</DIV>


<DIV>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}&nbsp;</DIV>


<DIV>So, I think the version of 1.6.2 is support the sdp transformation.</DIV>


<DIV>I want to know how to use the sdp transformation.Why I get the error,and 


how to avoid the error.</DIV>


<DIV>Thanks &amp; Regard</DIV>


<DIV>Lipeng beijing China</DIV></DIV></FONT></DIV>


<DIV>&nbsp;</DIV>


<DIV align=left><FONT color=#c0c0c0 size=2 


face=Verdana>2012-06-26</FONT></DIV><FONT size=2 face=Verdana>


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<DIV><FONT color=#c0c0c0 size=2 face=Verdana><SPAN 


id=_FlashSignName>GTS2010</SPAN></FONT></DIV></STATIONERY></BODY></HTML>