About
An independent wholesale carrier built for the international exchange.
SPM Engineering Sagl is a private telecom company operating in the wholesale segment, focused on international interconnection of voice, data and SMS traffic between operators worldwide.
Who we are
Headquartered in Minusio, SPM Engineering Sagl is configured as an OLO: Other Licensed Operator, holding the regulatory authorisation needed to operate as a fully fledged carrier.
Our network connects operators across continents, providing resilient routes for voice termination, data transit and A2P / P2P SMS exchange.
Beyond connectivity, we operate advanced reporting and billing systems and provide firewall protection for Class 4 and Class 5 switches, defending operator infrastructures from fraud and signalling abuse.
Private operator
Independent wholesale telco serving carriers worldwide.
OLO licensed
Authorised carrier status with full operator rights.
Global reach
Interconnects with tier-1 carriers across continents.
Secure by design
Class 4/5 firewall and signalling fraud control.
Neutral by design, global by reach.
Operating as an independent licensed carrier, SPM offers operators a trusted and neutral wholesale interconnection partner across international markets.
Get in touch