Subprocessors
Third-party service providers that help us deliver our services.
Last Updated: January 19, 2026
CallSphere uses the following third-party service providers (subprocessors) to help deliver our Services. Each subprocessor has been selected based on their ability to provide appropriate security and privacy protections.
| Subprocessor | Purpose | Location | Privacy Policy |
|---|---|---|---|
| Amazon Web Services (AWS) | Cloud infrastructure, hosting, and data storage | United States | View Policy |
| Vercel | Application hosting and deployment | United States | View Policy |
| OpenAI | AI language models for voice and chat agents | United States | View Policy |
| Twilio | Telephony and voice communication services | United States | View Policy |
| Stripe | Payment processing | United States | View Policy |
| MongoDB Atlas | Database hosting and management | United States | View Policy |
| Resend | Transactional email delivery | United States | View Policy |
Updates to This List
We may update this list from time to time as we add or change subprocessors. If you have a Data Processing Addendum (DPA) with us that includes subprocessor notification provisions, we will notify you of any changes in accordance with those terms.
Data Processing Addendum
Business customers who require a Data Processing Addendum (DPA) that covers our use of subprocessors can request one by contacting us at sagar@callsphere.tech.
Questions
If you have questions about our subprocessors or data processing practices, please contact us:
CallSphere
Email: sagar@callsphere.tech