42% of operators want to deploy 5G core networks from multiple vendors, but, in response to another question, 1 in 3 (33%) want to stick with their current provider to manage subscriber data. Some operators are turning to new frameworks to manage their 4G and 5G core networks, while others are deciding on their strategies on a case-by-case basis. Most of the operators interviewed acknowledge the advantages of an open, multi-vendor architecture, but reveal their concerns as the lack of a single point of contact and support (36%), interoperability (30%), and the lack of operational tools (19%).

It's no surprise that cost concerns are a top priority for many of the operators participating in the study. Total cost of ownership is the key consideration when selecting 5G subscriber data management (SDM) technology, especially for operators sticking with a legacy provider. And 39% of these mobile operators have experienced increased costs coupled with vendor lock-in and inflexibility due to their existing provider. However, while 5G offers operators the freedom to use multiple providers, 83% are concerned about interoperability in a multi-vendor architecture.

Interoperability is a key attribute of 5G multi-vendor architectures, but operators are currently divided on this issue. Furthermore, when it comes to interoperability, both those who favor multi-vendor and those who stick with traditional vendors prioritize open standard interfaces over full 3GPP compliance.

The mixed picture surrounding 5G strategies was also reflected in cloud migration timelines, which showed another divided result. 66% of operators migrating to multi-vendor environments have also begun migrating to the cloud. In comparison, 41% of those using their traditional provider have a foothold in the cloud, revealing that almost half of operators with traditional providers are not taking advantage of cloud technology.

Despite the stark contrasts in deployment and cloud strategies, a clearer picture is emerging regarding edge utilization. Over 90% of operators are leveraging their edge capabilities. 31% are already piloting use cases, and 29% are using the edge to reduce latency in 5G control functions, while others are using it to develop a mesh architecture and scale with hybrid clouds.

Stephanie Huf, SVP and CMO of Enea, states: "This survey has revealed a cautious pragmatism among many operators. For example, many want their technology to be standards-compliant, but they consider full standards compatibility less important. Operators are being practical, and while many appreciate how multi-vendor architecture can transform networks, they want to ensure they have the right skill sets and complete control over their networks, subscriber data, and total cost of ownership before taking the plunge."