Several avenues are available to operators who want to provide voice services on their LTE networks. To better understand the trade-offs that LTE operators face when providing high-quality and reliable voice services, each voice technology should be demystified.
Each voice technology associated with LTE is challenging in itself. The challenge in wireless networks today is the fact that multiple voice technologies need to coexist and interwork seamlessly with each other. This is the challenge of Voice over X.