The new research - Mobile Voice: Emerging Opportunities for Operators & Vendors 2019-2024 - from Juniper Research, identified smart speakers and VoLTE as technologies that will work together to enable IP-based voice services.
It also forecasts over 220 million smart speakers will be used to make calls to landlines or mobile phone numbers by 2024.
The research found that smart speakers, such as Amazon Echo and Google Nest, will enable new engagement channels which operators can offer to brands and enterprises.
And the research forecasts that the number of smart speaker voice minutes to phone numbers will grow over 1,000% over the next 5 years to represent 230 billion minutes of voice use globally by 2024.
In addition, the research anticipates that VoLTE networks will be increasingly leveraged to direct mobile calls to smart speakers - and urges mobile operators to support these emerging services by using mobile phone numbers as unique identifiers to enable calls to be directed to the correct smart speaker user.
In turn, users will link incoming traffic to both their smartphone and smart speakers simultaneously, the research notes.
According to the research, voice will become a key solution in CPaaS (Communications-Platform-as-a-Service) portfolios, with CPaaS identified by the research as key to the distribution of emerging voice services.
It found developing voice technologies, such as IVR (Interactive Voice Response) and voice bots, will be essential components of successful CPaaS platforms by offering additional communication channels.
The research also forecasts that operators’ revenue from voice services will fall from US$380 billion in 2019 to US$210 billion in 2024, owing to increasing usage of OTT (Over-the-Top) apps, including WhatsApp and Viber.
In response, the research recommends that operators sign partnerships with CPaaS vendors to allow access to their mobile subscribers for voice and messaging services as a strategy to mitigate declining revenue.