Key insights
- The base is already mobile-first. Most African SMEs already run their business off a mobile SIM, using it as their sales line, customer service channel and payment tool, so the operator already owns the relationship.
- The model shift. Instead of selling a phone system to the few companies shopping for one, operators can upgrade every business SIM into a business voice subscription with AI, sold as a small addition to an existing bill.
- The illustrative economics. In Telavox's model of a 100,000-SIM base, a Mobile Only tier monetised eight times as many SIMs and 2.1 times the annual incremental revenue of a phone-system-led approach, with payback in under four months (Telavox, Re-monetising the B2B SIM base). These are European illustrative figures.
- The moat over OTT. Operators own what an app cannot: the SIM, the number, the billing relationship, call quality and local trust, so the business features are built into the network rather than floating on top.
- Africa's advantage. With little fixed-line legacy to drag along, African operators can go straight to a business line that lives on the mobile network.
- The event. DSG and Telavox are hosting a webinar on this on 1 October 2026, aimed at operator product, enterprise and B2B leaders.
Why do most operators leave the SME base under-monetised?
Most operators leave the SME base under-monetised because they treat business communications as a phone-system sale, and only a small share of companies are ever shopping for one.
Buying a phone system is a considered decision. A business does it when it is replacing old infrastructure, opening a site or scaling a team. At any moment, only a fraction of the base is in that situation, and reaching them takes a sales-led motion with a long cycle and a high cost per deal. The rest of the base, the majority, keeps paying for airtime while the business communications layer never reaches them. Better sales execution cannot lift that ceiling, because the ceiling is the size of the phone-system market inside the base.
What is the Mobile Only model?
The Mobile Only model removes the qualifying step. Rather than asking which companies want a phone system, it upgrades each business SIM into a business voice subscription with AI, earning a few units of incremental revenue per SIM per month.
This reaches the whole base because there is nothing new to sell and nothing to install. The customer is already on the network, so the upgrade lands on an existing bill and works on whatever phone they already carry, smartphone or basic feature phone. That opens up the part of the base a phone-system sale could never reach: the field, frontline and mobile-first workers whose handsets were never going to run a desk system. Phones that earned only airtime become paying business subscriptions.