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1) I have a A2Billing installed server. I able to add customer and register with sip phone. I'm expecting some experienced people to modify the configuration files to work perfectly with providing inputs ( Inbound call, trunk, rate cards, agents, etc) using php.
i) adding inbound call (ipkall or Callcentric)
iv) Accounting realtime CDR
v) SIP/ IAX Phones
vi) DTMF and cli
2) Adding domain name and ssl certificate. (Expecting with in budget)