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Programming & Development Telephony / Telecommunications

VoIP developer

$29/hr Starting at $50

15+ years of professional experience in VoIP and telecommunication includes in-depth My last bigger projects : - http://www.greenkeytech.com/ - cloud based platform for financial markets, scalable (around 50 servers all around the world) Other already done projects such like: - Conference servers (Asterisk,Freeswitch) - web based billing system - postpaid,prepaid (A2billing - Asterisk) - realtime prepaid systems (Freeswitch + Cgrates) - web based voice broadcast system (autodialer) - SS7 gateways (Asterisk,chan_ss7) - web based fax broadcast system (t.38, HylaFax) -- Fax2Email system - Skype gateway (Asterisk) - SMS gateway (2N Stargate) - web based campaign system with agents interact (call/contact center) - FreePBX / Elastix configuration

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$29/hr Ongoing

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15+ years of professional experience in VoIP and telecommunication includes in-depth My last bigger projects : - http://www.greenkeytech.com/ - cloud based platform for financial markets, scalable (around 50 servers all around the world) Other already done projects such like: - Conference servers (Asterisk,Freeswitch) - web based billing system - postpaid,prepaid (A2billing - Asterisk) - realtime prepaid systems (Freeswitch + Cgrates) - web based voice broadcast system (autodialer) - SS7 gateways (Asterisk,chan_ss7) - web based fax broadcast system (t.38, HylaFax) -- Fax2Email system - Skype gateway (Asterisk) - SMS gateway (2N Stargate) - web based campaign system with agents interact (call/contact center) - FreePBX / Elastix configuration

Skills & Expertise

A2BillingAsteriskCloud ComputingDeveloperElastixFreepbxFreeSWITCHKamailioKAZOO VoIPOpenSIPSSMS GatewayTelephonytrixboxVoIPWebRTC

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