At that time, the tagline of a U.S.-based carrier’s TV commercial posed the question, “Can you hear me, now?” to illustrate the importance of good call quality and the fact that not every call could be relied upon for a satisfactory customer experience.

Despite this willingness to trade convenience and lower cost for quality in wireless calling, poor call quality, or low answer-seizure ratios (ASR), as well as average call durations (ACD) or post dialing delays (PDD) can result in customer dissatisfaction and high customer churn rates for voice services.

On the wholesale side, research firm GlobalData notes that carriers are under pressure to accelerate new services in addition to their voice offerings.

Voice services remain important to providers, including telcos, ISPs, cable operators or Over-the-Top (OTT) operators, and can be the entry point for enhanced service offerings.

Wholesale carriers also face the need to serve a broader range of customers ranging beyond traditional carriers to OTT, MVNOs and multinational enterprise clients that also want to serve their customer base with a wide portfolio.