Due to its outstanding flexibility, Ozeki VoIP SIP SDK also allows you to manage costs and implement billing for your VoIP calls efficiently. With this great feature you will be able to handle VoIP calls cost-effectively and professionally, furthermore, you can introduce several VoIP services based on VoIP billing. The following pages cover the basic payment and billing methods regarding to VoIP telephoning.

1. Billing by minutes or seconds

   This article is a brief introduction about call costs based on call length in relation with Ozeki VoIP SIP SDK.
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2. Billing by call setup

   This article is a brief introduction about call costs according to call setup in relation with Ozeki VoIP SIP SDK.
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3. Prepaid billing systems in VoIP networks

   This article is a brief introduction about prepaid billing systems in relation with Ozeki VoIP SIP SDK.
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4. Postpaid billing systems in VoIP networks

   This article is a brief introduction about postpaid billing systems in relation with Ozeki VoIP SIP SDK.
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5. Automated credit card payment systems (PayPal, ShareIt, Charging, Subscription, Chargeback)

   This article is a brief introduction about automated credit card payment systems in relation with Ozeki VoIP SIP SDK.
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