Using mobile calls in a telecaller job does not typically cause any significant problems. However, it is important to consider the potential health risks associated with prolonged exposure to electromagnetic radiation from mobile phones. While there is no conclusive evidence linking mobile phone use to adverse effects on pregnancy, it is advisable for pregnant women to minimize their exposure as a precautionary measure. It is recommended to follow general safety guidelines such as keeping the phone away from the body, using hands-free options, and limiting call duration. If you have concerns about the impact of your job on your pregnancy, it is best to consult with your healthcare provider for personalized advice.