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Currently, there are limited resources in place for patients who are recovering from illness and surgeries to be monitored at home while trying to resume or maintain a normal lifestyle. The Mobile On-Call system is a low-cost, low power device developed to address these issues. This device is intended to enable greater independence for those patients, while still offering real-time monitoring of their vital signs, and an immediate connection to healthcare. This project delivers a cell phone based program to actively monitor and assess a user‟s health based on three vital signals; electrocardiogram, blood pressure and body temperature. The results of the analysis are presented to the user via a graphical interface, and communicated to a physician or healthcare practitioner if deemed necessary, over an available cell phone network. It implements algorithms adapted to a mobile phone platform to compress and store the data efficiently.

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