Summary Bullets:
• While IP voice is less ubiquitous, when it matters it, it really matters
• Agent-to-agent communication adds a new paradigm to IP voice services
Calling IP voice a legacy service is a little unfair, but only a little. Innovation in this arena is still happening as can be seen by BT’s recent launch of its automated UC edge platform designed to help enterprises move numbers between UC platforms automatically. However, a recent and stark counterpoint to this is Lumen’s decision to exit the IP voice market.
Lumen’s decision is based on multiple reasons. The provider is focusing on what it sees as its core value proposition, which is its network services capability. Further, after a period of selling-off much of its global infrastructure, the acquisition of Alkira has broadened the provider’s horizons again and it now intends to be a provider of global AI-networking solutions. Lumen felt that IP voice was not something it could offer as a global proposition and so decided to exit the market. While Lumen may have had broader strategic reasons for exiting, there is no doubt that if Lumen had seen IP voice as a high value, high growth opportunity then it would have acted differently.
Lumen is somewhat of an outlier, however, and many providers are, if not bullish, then at least moderately optimistic about the future of voice services. For example, BT International has made international IP voice one of its core service offerings and will continue to invest in it. BT reports that IP voice has been one of its biggest success stories in winning new logos. AT&T is also doubling down on voice, albeit with a focus that, while still possessing a global aspect, is America-centric.
What is powering this optimism when many enterprises have already taken IP voice services away from many of their workers in favor of mobile voice and video conferencing solutions? One part of the answer lies in customer contact services. Contact centers are viewed by many providers as a key growth market and voice is a key part of this. It is easy to assume that the growing use of AI is eroding the voice component of contact centers, but this is not necessarily the case. AI chatbots have automated many simple processes such as order tracking, password resets, and similar. However, extending AI into more complex and regulated environments is less easy. The token cost of agentic AI also makes the cost benefits less certain.
As AI continues to improve the cost comparison will change, but there is also the customer preference aspect that should be taken into account. Many customers continue to prefer talking to a human rather than engaging with AI. This is true among the younger generations as much as older generations. There is also the fact that where humans most want to speak to another human is in the most important interactions – when there has been a problem, or selling high value services or situations where customer retention and revenue generation are at stake. While there may be fewer calls into contact centers, when they happen, they matter – and their importance is creating greater interest in high quality voice services.
The emerging factor keeping service providers interested in IP voice is also centered around AI. In particular, it is calls that will be generated by agentic AI agents – either calling humans, or interacting with other agentic agents. As businesses and individuals begin to deploy more agentic AI agents they will need to communicate and it is not yet clear how this will happen. Some of it will be via APIs and MCPs, but not all systems will be connected, and agent-to-human-scenarios will always require either voice or text.
So, while AI is a clear threat to IP voice growth, it is also the potential savior of this oft-maligned but still hugely important technology.