Service Cloud Voice for Partner Telephony API
Developer API for connecting third-party telephony systems to Service Cloud Voice, including the Connector API for passing information between contact center platforms and Salesforce.
Documentation
Documentation
https://developer.salesforce.com/docs/atlas.en-us.voice_pt_developer_guide.meta/voice_pt_developer_guide/voice_pt_dev_guide.htm
GettingStarted
https://developer.salesforce.com/docs/atlas.en-us.voice_pt_developer_guide.meta/voice_pt_developer_guide/voice_pt_connector_api_get_started.htm