Call us - we're here for you. Our main number is (+1) 651-771-3588. If that number is busy, or nobody answers, you can call or leave voice mail at (+1)651-319-9139; we'll return your call ASAP. Please let us know where you're calling from and what time is best to call you so we don't accidentally wake you or your family. We are in the Central Time Zone, (UTC-6).
We're now VOIP-enabled, so both these numbers should be free calls for anyone with a decent VOIP service that supports ENUM lookups (Skype is neither). Our hardware adapters support g711a (preferred), g711u, g723, g729, and g726 codecs ONLY. If you absolutely, positively, have to use GSM, Speex, or iLBC, please email us for the SIP address of our softphone account that supports these codecs.
Snail mail us:
1732 Ross Avenue
Saint Paul, MN 55106