• Incremental Billing: In 6-second billing, the total duration of a phone call is rounded up to the nearest six-second increment for billing purposes. For example, if a call lasts for 25 seconds, it will be billed as 30 seconds (5 increments of 6 seconds).

• Comparison to Other Billing Increments: This is in contrast to other billing increments like 1-minute or 30-second billing, where calls are rounded up to the nearest minute or 30 seconds, respectively. 6-second billing can be more cost-effective for customers, especially for shorter calls, as it offers more precise billing.

• Common in VoIP and International Calling: This billing method is particularly common in Voice over Internet Protocol (VoIP) services and for international calls, where call charges might be higher. It provides a more granular and potentially fairer way to charge for the actual time used.

• Benefits for Customers: Customers often prefer 6-second billing as it can lead to lower costs for brief calls. It's especially advantageous for businesses or individuals who make a high volume of short-duration calls.

• Impact on Billing Systems: Telecommunications providers need to have billing systems capable of accurately tracking call durations and calculating charges based on the 6-second increments.

6-second billing is a reflection of the telecommunications industry's efforts to offer more transparent and fair billing practices, aligning charges more closely with actual usage.