... rates 4.Accurate billing Product Name: Phone Billing Meter / Pulse Meter Model: SV-P(2LCD)Product DescriptionThe 2-line phone ... call as well.• Billing startup: polar-reverse, 12/16Khz pulse, manual or delay automatically.• Billing statistic: daily total of ... forbidden call signal for billing startup: Polar-reverse, 12/16KHz pulse, manual or delay automatically. 5. Identify call number automatically ...