Plivo, a Y Combinator-backed telephony startup that offers an API platform for voice and SMS applications, is today announcing it raised $1.75 million in seed funding from Andreessen Horowitz, Battery Ventures, Qualcomm Incorporated, and SV Angel.

For background, the company offers businesses a way to host their voice and messaging applications in the cloud. Co-founder Venkatesh B (who goes by Venky), describes the service as aiming to do for telephony hosting what Amazon did for web hosting.

He and Plivo’s other founder Michael Ricordeau had originally met over GitHub over two years ago when each were working on their own telephony applications. Discovering a shared interest, the two launched Plivo in December 2011 in invite-only mode, and then opened up API access in July to all interested parties.

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