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Top IT Product Companies for VOIP

2 IT product companies ranked by rating, review volume and listing quality.

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  1. Kalliope logo

    Kalliope

    Also in Italy

    Kalliope is the company behind KalliopePBX, a business telephone system launched in 2008.

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  2. S

    Slican

    Also in Poland

    Slican sp. z o.o. of Bydgoszcz makes telephone exchanges, system and SIP phones and call-center software, and its IPx exchanges were fixed in version 6.62.0100 after a CERT Polska…

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