C2Call offers the most affordable and competitive calling rates when it comes to dialling via VoIP. Millions of minutes are terminated every month and the rates are continuously monitored to ensure that it delivers the cheapest solution for developers to make marginal revenues. With C2Call API, developers can allow their apps’ users to see call charges on their screen before and/or during a phone call. Charges for phone calls and SMS apply per minute and per SMS, respectively. The prices vary from time to time according to the fluctuations in global market, and are immediately updated in Call and SMS rate list here.
C2Call supports call credit for end users in USD and Euro, and these are managed by app developers in the form of virtual currency. The end users can purchase calling credit through a dedicated billing system and the charges of calls, SMS and other paid services are deducted from their credit account in real time. Developers can also allow their app users to earn credits in a number of ways with OfferWall. End users can earn free credits by watching small video clips, completing offers or by downloading apps. In this case developers keep 100% of the revenue generated by publishing offers.
C2Call offers a volume discount on master credit for developers, who can then use it to distribute call credits to the account balance of their app's users. Developers can also create a new business model or can integrate any 3rd party payment gateway to ensure flexibility and security. If the master credit runs out of funds, the end users will still continue using the services without any interruption. However, the further transfer of call credits from the master credit will be halted until the developer tops it up again.