Twilio's volume pricing for inbound calls only kicks in after 500K minutes. You get that rate with Plivo for your first minute. Twilio's per-minute volume prici

Twilio's volume pricing for inbound calls only kicks in after 500K minutes. You get that rate with Plivo for your first minute. Twilio's per-minute volume pricing for over 15M minutes of outbound per month is still more expensive than what you pay Plivo starting with your first outbound call. That's what volume pricing from the start means.