I. INTRODUCTIONModern network technologies make a major contribution to our information technology industry. Remote systems are recognized as one of the most significant innovations in today's reality. The cheapest known standalone device used for communication is the intercom. Almost all your workplaces as well as homes contain these types of practical products. These plans are set up for security purposes so that the authenticated person is easily identifiable. However, many developments are needed within these types of technologies and devices. Most of the exploration, model and configuration was being simulated from the automation devices. In any communication technology, mobile devices are very common nowadays and their network is based on special methods and systems. In Remote Intercom Access, 1.1 Project ObjectiveThe project objectives are given below:• To design an automatic door intercom system.• Finally, to make life more comfortable with security, quality, reliability and robustness.1.2 Design ChallengesImplementation on page regarding a In reality, the process involves the overall performance regarding other functions. The design of such a system requires the simultaneous execution of the following tasks. • The circuit should really have a new centralized control model that can accommodate just about any remote node that allows it using DTMF decoding. • In an ideal system, the separation between speakers and microphones should be maximized to optimize performance. • It should have some sort of intelligence built from it.. • It should generate alerts in the critical application or real-time operations. Examples: Monitoring of lar ...... middle of paper ...... fee number introduced as shown in Figure 14. Communication can be carried out at Using the microphone and speaker and after communication, if the owner presses 1 on the keypad, the decoder decodes the tone into a 4-bit number and the main controller will unlock the door as shown in figure 15. If button 2 is pressed on the keypad, the off hook circuit will be activated to disconnect the call as shown in figure 16. Then, the microcontrollers need to be reset by changing the logic at their RST pins, to prepare them for next round. If button 2 is pressed on the keypad, the off-hook circuit will be activated to disconnect the call as shown in Figure 16. Some of the important development and design features of this system are mentioned in this thesis to enable “access to the remote intercom” in order to be able to work in the desired/specific environment.