The VoIP User network was designed to operate within a community environment and therefore differs substantially from most other VoIP networks. The main highlighted difference being that users can call PSTN phone numbers through VoIP User's PSTN gateway without incurring any call charges. The way that VoIP User is funded is noteworthy: Calls into VoIP User’s numbers generate a small amount of per minute revenue (the “termination charge”), and this money goes into a community account or “pot”. Outbound calls from VoIP User then call upon this pot and use the accrued call minutes. This means that if all users are community-minded then there is a balance between incoming and outgoing calls that keeps the pot at a constant level.