<?xml version="1.0" encoding="utf-8"?><HelpTOCNode Title="Ringing Class" Url="html/T_Independentsoft_Sip_Responses_Ringing.htm"><HelpTOCNode Title="Ringing Constructor " Url="html/M_Independentsoft_Sip_Responses_Ringing__ctor.htm" /><HelpTOCNode Title="Ringing Properties" Url="html/Properties_T_Independentsoft_Sip_Responses_Ringing.htm" /><HelpTOCNode Title="Ringing Methods" Url="html/Methods_T_Independentsoft_Sip_Responses_Ringing.htm" /></HelpTOCNode>