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A prepaid telephone card, VoIP calling card or phone card for short, is a small plastic card sized and shaped like a credit card, used to pay for telephone services. In most or all cases, having the physical card itself is unnecessary, and knowledge of the access telephone number to dial and the PIN is sufficient to use it. Most calling cards give a fixed amount of credit and are discarded when used up; rechargeable cards can be topped up, using a credit card or recharge voucher. grnVoIP’s SIP Reseller platform has full support for calling cards, allowing you to purchase VoIP termination at wholesale rates, and then sell calling card service to your customers. We support thrid-party DIDs so that you can purchase virtual DIDs from anywhere in the world, allowing you to provide local service almost anywhere. See our SIP Reseller page for more information about features and functions. |
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