operate Arduino via Intercom by pressing "#1"

Hello We have been an engineer for more than 8 years in the market and have already developed projects for several companies using microcontrollers like ARM, PIC, AVR, NXP, Nordic, Texas, STM, ESP, Arduino, Raspberry among others. Using the general description of your project is possible to make a generic estimate, but the refinement of the total amount of work and the value of it will depend very much on the quantity and complexity of the features to be implemented, so I look forward to your contact for more details. Thank you.

Hello, I would love to work on this project as have many many years experience in dtmf decoding using different dtmf decoder chips and using Arduino and other micro controllers. Please contact. regards, Ali

We have experience in developing projects on Arduino. please contact and describe more about the project. would be happy to take the project.