http://blog.vpetkov.net/2011/07/10/spoofing-caller-id-on-the-fly-from-any-phone-for-legal-and-legitimate-purposes/ Asterisk dial plan exert that allows to enter callerid before making a call
http://blog.vpetkov.net/2011/07/10/spoofing-caller-id-on-the-fly-from-any-phone-for-legal-and-legitimate-purposes/ Asterisk dial plan exert that allows to enter callerid before making a call
http://blog.vpetkov.net/2011/07/10/spoofing-caller-id-on-the-fly-from-any-phone-for-legal-and-legitimate-purposes/ Asterisk dial plan exert that allows to enter callerid before making a call
http://forum.voxilla.com/linksys-sipura-voip-support-forum/do-craft-dial-plan-string-9511.html form post explaining Sipura/Linksys 3XXX dial plan syntax