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</o:shapelayout></xml><![endif]--></head><body lang=ZH-CN link="#0563C1" vlink="#954F72" style='text-justify-trim:punctuation'><div class=WordSection1><p class=MsoNormal><span lang=EN-US>I get a linphone client for my phone and construct a opensips servers on my Ubuntu computer. I register my linphone client on the opensips servers by user name 101, and register user name 102 for another phone , and establish a video call between these two users successfully. But when I replace the user 101 with 103, and use 102 to call 101 it was also call the phone that register by user 103. How can I log out the user ? It¡¯s there a command of opensips to log out a user? <o:p></o:p></span></p></div></body></html>