Dear All, I was successful in integrating kamailio 4.0.1 server with Asterisk 11.4.0 in Ubuntu 12.04 LTS version, by using the following link : http://kb.asipto.com/asterisk:realtime:kamailio-4.0.x-asterisk-11.3.0-astdb. Both the servers are running parallely without any problems. And i choosen siremis-4.0.0 to get the control panel of kamailio server and i got its GUI (By following below link): http://kb.asipto.com/siremis:install32x:main But when i tried to register my VoIP phones with the Kamailio server, I am getting the status code reply as *'401 Unauthorized* (0 bindings)'. What could be the wrong? How can i solve it? And how can i retrieve my Users (are which i had added to MySQL database) in SIP server (kamailio) GUI? Any help will greatly appreciate. *Thank you and Best regards,* *R Ravindra **Gowda* *Engineer - Systems and Products*. *Thrikasa Technologies* *| Office: +91 40 23260434 | Mob: +918885284050 * *| Fax:+91 40 23221045* *| email: ravindra(a)thrikasa.in <mailto:ravindra@thrikasa.in>* *| Web: www.thrikasa.in <http://www.thrikasa.in>* 'If you don't give up,you cannot fail'. The information contained in this communication is proprietary to Thrikasa Technologies., and/or third parties, may contain classified or privileged information, and is intended only for the use of the intended addressee thereof. If you are not the intended addressee, please be aware that any use, disclosure, distribution and/or copying of this communication is strictly prohibited.If you receive this communication in error, please notify the sender immediately and delete it from your computer. _______________________________________________ sr-dev mailing list sr-dev(a)lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-dev