Dear Sir, let consider me too for this project. Have much experiences in Creating & Customize C Code, scripting PHP & Python for astersisk based on ver 1.4.x for embeded unix based boards, through ver 1.6.x for enterprise. It involves channal modules & apps, E1/T1/ISDN, various gateaway such SIP, GSM, CDMA. H232 dvices, extension for CRM, FreePBX, Elastic etc. And colaborate it for enterprise and Telco devices such Hybrid PBX, convergence and IP PBX for many manufacturer from Nortel, Panasonic, Alcatel, Siemen and Avaya. Thank you ...