| Extension configuration | Simotel server address, API endpoint, extension preferences, selected language, integration settings. | To connect the Extension to the user’s configured Simotel environment and keep the Extension working as configured. |
| Authentication and access data | Login token, API key, session identifier or similar credential configured by the user or administrator. | To authenticate requests to Simotel or the customer-controlled PBX/integration server. |
| Call action data | Clicked or selected phone number, call command, extension/user identifier, call status, timestamp and result metadata. | To place, route, display or confirm call actions requested by the user. |
| Page interaction data | Current page URL, domain, page title or visible phone-number text, when required for click-to-call or number detection. | To detect phone numbers on pages or associate a user-requested call action with the page where it was initiated. |
| Operational logs | IP address, browser user agent, request time, error logs and security logs generated by Simotel-controlled services. | To operate the service, diagnose failures, secure the service and investigate abuse. |