Guest lectures are an integral part of the pedagogy at Rai University, Ahmedabad. On 26th August, 2014, Corporate Resource Cell at Rai University had organized a guest lecture on IP Telephony for B.Tech-IT, CS & EC students. The Speaker for the lecture was Mr. Kaushal Bhavsar, who is the Founder & CEO of Pratikar Technologies Limited, Ahmedabad. Mr. Kaushal is B.Sc. in EC, MCA, and pursuing Ph.D. in Computer Security. He has vast experience in the field of Computer Diagnosis, Cloud Computing, Linux, System Analysis, VoIP, Quality Assurance, UI Design, and Penetration Testing. In his lecture Mr. Kaushal Bhavsar discussed the concept of Telephony, PSTN, Enterprise Telephony, PBX. He also introduced the students to VoIP, some case projects and challenges in the composite industry. Students learned important aspects of IP Telephony and enjoyed the lecture. The lecture ended with discussion on career opportunities in the field of IP Telephony.