CTI Data Connector for Salesforce works with any PBX - VOIP, on-premise or cloud which comes with a TAPI (TSP) driver
CTI Data Connector is available with a subscription that includes everything - Open CTI Cloud Service / all updates / support by e-mail
Native integration in Salesforce Sales and Service Cloud using Open CTI
CTI Data Connector is available as a subscription with pricing per user.
The subscription offers an all-round carefree package: