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<DIV><FONT face=Arial size=2><FONT face="Times New Roman" size=3>Hello, when
with my client X-lite try to register in the server that say me,<BR>Registration
error:501 Not implemented.<BR><BR>What isn't implemented? the registration in
the sip.conf or extensions.conf?<BR>how can i implemented
that?<BR><BR><BR>thanks.<BR>Abel </FONT><BR></FONT></DIV></BODY></HTML>