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<DIV><FONT face=Arial size=2>Hi All</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>We came accross a typical problem, Let me describe
you through </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>SIP IP Phone -----------> SIP Proxy
--------------> MediaGateway -----------PSTN Network</FONT></DIV>
<DIV><FONT face=Arial size=2>IP address
'A' IP
address
'B'
IP address
'C'
Phone No. 'xxxx'</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Now when we make a call from SIP IP Phone to a PSTN
network say xxxx no (an IVR no.). call gets establish, but in the mean while if
the network of SIP IP Phone goes down, call is still going on.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Is there any method through which we can check if
the IP phone is UP (on Network) or not, if not then call gets
disconnected.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Ritesh Jalan</FONT></DIV>
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