A typical VoIP billing platform for wholesale and Calling Card traffic platforms. Backend will be FreeSWITCH and OpenSIPS. We have already developed somewhat and need to continue as overwhelmed with other projects. The platform will be able to bill VoIP calls, rating, billing, CDR management, Customer Management, email alerts etc.
Application will be developed in SugarCRM, PHP/MySQL/PostgreSQL
I have the design ready, but not posting here since only looking for export professionals which have FreeSWITCH/OpenSIPS/VoIP experience.
NOT looking for an average PHP developer.
Skills: voip, billing, management, design