Development of low cost Intercom system for elevators

Hi, I am an Electrical Engineer practicing for last 10 years in an R&D Organization. I have designed a number of products ranging from RF & Microwave circuits to digital circuits. i have experience in designing filters, couplers, LNAs, Amplifiers, antennas, sweep generators, function generators, VCOs, NCO and many more in the frequency range of DC to 2 GHz. i use ADS, HFSS, OrCAD, Eagle PCB and Altium for the design and development of the above mentioned products. I have designed circuits for Filters, Couplers, LNA, Amplifiers, Antennas, Bluetooth, WiFi, GSM, GPS, Sweep Generators, Function Generators, VCOs, NCOs, DDS, 555 timers, AM Modulators, Microcontrollers, EEPROM, Flash, Accelerometers, USB, RTC, Strain Guages, Opto-couplers etc. My area of expertise include also PCB Schematic and Layout Design, Antenna Design, PCB Prototyping and testing, Programming using LabWindows, LabVIEW and MATLAB, etc. Looking forward to discuss in detail. Regards

Sir/Mam are you looking for existing solution (you need me to make a very detailed research for a realistic solution) ? or you want a solution from scratch (starting from the digital circuits to the access control protocols and security measures...) ? Let me know, and I will not waste either your time or money. I kindly ask you to consider hiring me. My kindest regards.

I am a software professional with good experience in Telecom and VOIP. Wireless communication will not be possible from elevator as a metal cage blocks most of the wireless traffic. Are you looking for wired or wireless traffic from elevator ?.

Greetings, I am a telecommunications engineer working for the largest service provider of India, for the past 6 years. I am in to maintenance and augmentation of transmission network, both optical and electrical. I can help you with a reliable and economical design for your intercom facility. Looking forward to hear from you on a positive note. Thank you