VoIP Providers for Asterisk

The Best of Nerd Vittles

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All-You-Can-Eat

All-You-Can-Eat Incoming with DID

Pay-As-You-Go

Toll Free Numbers

Almost-Free More or Less

Nerd Vittles Original Article (1/10/2007): New Year's Roundup: Pick-of-the-Litter VoIP Providers for Asterisk