Hello sir, I'm a voip tech with over 10y experience working for a voip company on the level2/NOC department, I can install, troubleshoot and customize many sip devices including: softphones, ATAs, IP-phones and PBX systems like Asterisk/FPBX. I read your project description and I can certainly help you setup your dial-pattern/outbound-routes and anything else you may need for your PBX. Feel free to contact me at any time.
Thank you.