Hello, I'm a voip specialist with 10 years of experience working for a VoIP company on the level2/NOC department; I can install, troubleshoot and customize many SIP equipments including softphones, ATAs, Ip-phones and PBX systems like Asterisk/FPBX. I read your project description and I can certainly help you configure your PBX installation, trunks, routes and anything else you may need for your PBX. You may contact me here on chat at any time and we'll get this project started.
Thank you.