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Annexes to the DPA

Details of Processing, Technical & Organisational Measures, and Sub-processors.

Last updated · April 20, 2026

The following annexes form an integral part of the Data Processing Agreement between Callsy AI OÜ (Processor) and the Merchant (Controller).

Annex 1 — Details of Processing

A. List of parties

1. Controller

  • Name: Merchant — the party using Callsy via Shopify, API, or MCP
  • Address: as set out in the Main Agreement or invoice
  • Contact: as set out in the Merchant’s account
  • Role: Controller

2. Processor

  • Name: Callsy AI OÜ
  • Address: Republic of Estonia — as set out in the Main Agreement
  • Role: Processor

B. Description of transfer

1. Categories of data subjects

  • Customers of the Controller
  • Leads and prospects of the Controller

2. Categories of Personal Data

  • Name and contact details (phone number, email)
  • Order and cart information (value, items, status)
  • Relevant business metadata (lead status)
  • Call metadata (duration, timestamps, call status)
  • Call recordings and transcripts
  • Voice inputs (biometric data not processed for identification purposes)

3. Special categories of data

None. The Controller shall not submit special categories unless explicitly agreed in writing.

4. Nature of processing

  • Storage, hosting, and transmission of data
  • Text-to-Speech (TTS) and Speech-to-Text (STT) conversion
  • AI-driven conversation management and workflow automation
  • Telephony connection, call routing, and SMS transmission
  • MCP tool-call routing between the Merchant’s AI agent and Callsy

5. Purposes of data transfer

  • Providing Callsy Services (automated outbound calling)
  • Recovering abandoned carts via outbound calls
  • Customer-support and booking automation
  • Lead qualification and meeting booking triggered by AI agents via MCP
  • Analytics, logging, and service improvement

6. Duration of processing

  • Processing continues for the duration of the Main Agreement
  • Personal Data is retained only as necessary for service provision or legal requirements

Annex 2 — Technical and Organisational Measures (TOMs)

Processor implements the following measures to ensure an appropriate level of security.

1. Confidentiality

  • Access control: production servers and customer data are restricted to authorised personnel using unique IDs and Multi-Factor Authentication.
  • Encryption: data is encrypted in transit using TLS 1.2+ and at rest using AES-256 standards.
  • Logical separation: customer data is logically separated in a multi-tenant database environment.

2. Integrity

  • Change management: code changes undergo testing and code review before production deployment.
  • Input validation: application inputs are validated to prevent SQL injection, XSS, and similar vulnerabilities.

3. Availability and resilience

  • Cloud infrastructure: the Service is hosted on top-tier cloud providers with high availability and redundancy across multiple zones.
  • Backups: automated daily database backups enable data restoration.
  • Disaster recovery: a documented business-continuity strategy is in place for critical-service recovery.

4. Testing and evaluation

  • Security scans: regular automated vulnerability scanning is performed on infrastructure.
  • Incident response: a documented incident-response plan governs breach handling and GDPR-compliant notifications.

Annex 3 — List of Sub-processors

Controller authorises the following sub-processors.

Sub-processorLocationActivity
Amazon Web Services, Inc. (AWS)EMEA SARL — Frankfurt / Ireland, EUCloud infrastructure — application hosting, database, compute. Compliance
Bland AI Inc.USAAI telephony — audio processing, STT, TTS. Compliance
Twilio Inc.USATelephony & SMS — PSTN, call routing, numbers, SMS. Compliance
ElevenLabsUSA / EUNeural TTS voice synthesis for premium voices.
OpenAIUSALLM inference for conversational AI components.
DeepgramUSAReal-time speech-to-text transcription.
UAB CallsyLithuania, EUTechnical support & platform development.

When a Merchant’s AI agent invokes Callsy via MCP, the agent’s own provider(e.g. Anthropic, OpenAI, Google) also processes the prompt and response data in its own capacity. Those providers are not Callsy sub-processors; their processing is governed by the Merchant’s agreement with them and their own privacy policies.

Questions? Email support@callsy.ai.