venkatesh chandran 写道: > Hi *, > I have query related to the ACK send for unsuccessful response. > What do you mean about the unsuccessfull response, could you set a example? > ACK is send as hop by hop for the received unsuccessful response.ie consider > the following scenario, > UA1----->PROXY1------>PROXY2------>UA2 > Now when UA2 send 486 busy then PROXY2 sends the ACK back to UA2 and then > forwards the 486 busy to PROXY1 and PROXY1 does the same. > How the proxy is able to generate a ACK in this case? and how it will know > that ACK has to send to that particular destination? > is it based on the source IP and port from where the message is received? > > > Pls clarify. > > Regards, > Venkatesh > _______________________________________________ > Sip-implementors mailing list > [email protected] > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > >
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