The survey of 1,500 US households, conducted by TeleGeography, found that 52% of online households said they were likely to subscribe to a flat-rate VoIP service package if it was priced at $30 per month. Only 30% of online households were likely to replace their existing landline phone with VoIP if automatic 911 services were unavailable in the VoIP package. 76% of online households said they would completely replace their existing phone service if they subscribed to VoIP. Many of the most likely VoIP subscribers are also considering wireless substitution for their home phone line as well. 30% of US residential broadband subscribers have never heard of voice-over-IP (VoIP) telephone service. This is a crucial point for providers to consider, as people who are already familiar with VoIP are 50% more likely to subscribe than those who are unfamiliar.