Exotel provides its users with virtual phone numbers that can be used for customer service, bulk SMS, and conference calls. These numbers come with Interactive Voice Response (IVR), call recording, data collection, and analytics services. Exotel provides a RESTful API that allows developers to integrate its IVR and SMS systems into their applications or websites.
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The Exotel Python SDK by Sarath S Pillai interacts with the API to access telephony features. Usage demonstrates how to initialize, make a call to connect to a number, send an SMS, and access details of a call.