This research paper provides an insight into the performance comparison between VoLTE and 4G. According to 3GPP 4G was introduced to provide better QoS and provide efficient data transfer with high speed using low latency. The VoLTE was firstly launched by Reliance JIO in India in the year 2016. VoLTE had an add on feature over the conventional 4G which was Voice over LTE, which means that the voice would be broken into smaller pieces and will be packed and sent using packet switched services. This paper focuses on the network they provide in urban areas and their performance. Various tests like SINR and CRT were performed on both the networks to find which one is better and which one needs to improve. As of now in India 4G is provided by many companies like Airtel, Vodafone, etc whereas VoLTE is provided by JIO only. This paper first presents the challenges and benefits of both 4G and VoLTE and then explores more into their performance related information. The SINR and CRT test proves 4G to be better in most of the terms and it also displays the scope of improvement for VoLTE network.

Keywords : 3GPP, LTE, QoS, SINR, VoLTE.