inline.. prabhan <[EMAIL PROTECTED]> wrote: Hello, If a User agent Server or a Proxy server is authenticating an incoming reuest, say INVITE or register , Can the server send 100 trying before sending 401/407 Authentication required ?
>>>> Infact, 100 trying is supposed to be sent before (4xx final response). UAS sends >>>> 1xx if it cannot send a final response within 200ms. for proxy, it will >>>> immdetiately send a 100 to the UAC and transmit the INVITE to the other side. 100 Trying is to be sent to stop the retransmission of INVITE requests . >>> YES. Suppose the server sends 401/407 first and after the authentication is successful sends 100 trying, will there not be retransmissions of INVITE requests ? >>> That is never the case. Provisonal response (1xx) is sent only b'cos one does'nt >>> have a final response. So once a final repsonse like a 4xx is sent, there is no >>> need to send a 1xx. Thanks, Prabha N _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors --------------------------------- Do you Yahoo!? Win 1 of 4,000 free domain names from Yahoo! Enter now. _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
