PBX Programming with Asterix

I have a Sangoma FreePBX Phone System 50 and Sangoma Vega 50 Media Gateway Vega 50 system that I would like programmed, I had someone in the Philippines partially program the system but it was not very successful we were trying to do a hybrid system incorporating my PSTN lines with my NEC Zenmaster system as well as the Sangoma & Europa Vega 50 system for VoIP but this did not work out well. I would now like to run the NEC Zenmaster system and the PSTN lines as one system and use the Sangoma & Europa Vega 50 system seperately for VoIP calls as an over flow for when we are busy. There are 7 lines. Sangoma FreePBX Phone System 50 The Sangoma FreePBX is the only hardware solution that’s officially certified by the FreePBX project. The FreePBX appliances are the optimal high-performance PBX solutions. Each one comes pre-loaded with FreePBX Distro to make deployment, configuration, and use of your PBX system even easier. The Sangoma FreePBX Phone System 50 has a maximum capacity of 50 users or 25 concurrent calls. Sangoma Vega 50 Media Gateway The Sangoma Vega 50 Media Gateway supports 2–10 analog ports. It has flexible call routing for fallback and least cost routing. It has Emergency PSTN backup, interoperability with a wide range of legacy and IP equipment, SIP and H.323 support. It has Voice, FAX and modem support as well. Yealink SIP-T21P This IP phone has HD Voice: HD Codec, HD Speaker and HD handset. This has 132x64-pixel graphical LCD and 2 VoIP accounts. This has two-port 10/100 ethernet switch, integrated PoE and headset. This is also wall-mountable and comes with basic call features like call forward, call waiting, call transfer, etc. This is capable of direct IP call without SIP proxy. Requirements:  Dial Plan configuration  Call routing configuration  Extensions configuration  IVR configuration  Testing, training, handover etc.