my means , how could use asterisk and ser in same box. my ser support mysql database , so whether asterisk don't config user in sip.conf ? and how to do I should ? thanks a lot. and I want to agent asterisk product in China Mainland, who can contect me. Best Regards Zhao Zigang ??? Alcatel Shanghai Bell Co., LTD *:388,NingQiao Rd.,Shanghai 201206 *:086-21-50554550-7762 *:Zigang.Zhao@alcatel-sbell.com.cn