Apparently there is venture capital for VoIP. Growing VoIP service provider Jajah has taken in $2.75 million so far of an anticipated $5 million fourth round of private funding, say reports. Investors in the most recent round have not yet been disclosed; previously, Jajah raised $23 million from Globespan Capital Partners, Intel Capital, Deutsche Telekom and Sequoia Capital.

Over the past three years, Jajah broke away from the me-too mobile web VoIP play of free client-to-client calls and oh-so-cheap international rates. The Silicon Valley-based company moved into providing VoIP back-end operations a year ago, picking up Yahoo and a number of other customers along the way. It’s got a strategic partnership with Intel to get its technology onboard next-generation PCs, and it has rolled out a bunch of software clients to support VoIP calling on WiFi.