VoIP Services Chennai:Clarity and Cost Cutting As in other cities, VoIP Services in Chennai are paid and received over the internet. VoIP Services in Chennai allows users to conduct multi-user conference via calls making very significant savings of upto 90 percent in entertainment expenses and travel expenses. Transmitting voice calls over the internet reduces all the cost associated with traditional telephones significantly without losing the sound quality in anyway, all the while adding to the telephones functionality.