Hi, We are replacing a legacy PBX for one of our clients, and they have like everyone else been using "9" to take an outside line/call. Once they press "9" they get a second dial tone indicating they can dial out. How is this possible with Elastix? We are using and SPA8000 and Yealink T20P Phones for extensions. We can dial out right no by dialing "9" + XXXXXXX.. but we need to get the second dial tone once 9 is pressed. Please help, Thanks.