Hi all, I'm still trying to get a handle on using regular expression in openser. I can't seem to find any documentation on openser wiki on regular expression usage. I have the following in my openser.cfg and a call to sip:48911@ourdomain.com is logged as emergency call. What am I doing wrong? if (uri=~"^sip:(99)|(9911)|(45555)|((93)?911)@") { xlog ("L_INFO","Emergency call \n"); } I am using this as a work around: if ((uri=~"^sip:(99)|(9911)|(45555)|(93911)@") || (uri=~"^sip:911@")) Thanks in advance for your help.