View Full Version : IP connection cannot be established

10-04-2007, 12:41 AM

What causes the error "IP connection cannot be
established". I am experiencing this for calls through my ITSP. I can
ping the ITSP IP both from the command prompt and from the quadro. This
error(IP connection cannot be established) is not constant but on and

10-10-2007, 04:44 PM
check you DNS setting in Quadro.

10-14-2007, 08:46 PM
Thanks for the response. My DNS settings are okay. I am not using my
ITSP's URL for routing but my ITSP's IP address, so I don't think the
dns settings could be causing this error.

10-14-2007, 10:06 PM
In my limited experience, I get that prompt whenever a line isn't registered, and authentication for the INVITE fails / is refused by the proxy.
Have a look at the SIP traces when that problem happens.. maybe you'll see something.

10-15-2007, 12:35 AM
Usually this error appears during network problems, when the connectivity to ITSP is lost for some time.Quadro can play such message, if timeout occured trying to contact proxy, or ICMP message (like destination unreachable) is received.