Challenges and Opportunities in Creating Scalable Voice Services Bill Thies Microsoft Research India Joint work with Shubhranshu Choudhary, Aditya Vashistha, Preeti Mudliar, Arjun Venkatraman, Samujjal Purkayastha, Latif Alam, Anoop Saha, Ben Colmery, Smita Choudhary, Elisa Tinsley, and Saman Amarasinghe