BT is a good choice for UK SME and mid-market companies, but their global services products are normally bought by large multi-national corporations. Clients can use any combination of connectivity - including but not limited to MPLS, broadband Internet and 4G/5G LTE. Netify would recommend considering BT for underlay with added services from integrators in some instances.
Global clients can make use of BT's global IP backbone, which offers PoPs in 198 countries worldwide (including China), with strong SD WAN and SASE offerings from Cisco Viptela and Cisco Meraki (other vendors are available). Further security capabilities include SIEM, XDR, managed firewall, managed DDoS and security advisory services, with managed services offerings backed by experience working with government, military and emergency services.
However, due to BT's large size, their clients often have to deal with unnecessary bureaucracy and process, meaning that reaction times can be slow.
BT have a strong mobile capability due to their acquisition of mobile phone network provider EE in 2016. They leverage 4G and 5G LTE capabilities with connectivity speeds of up to 10Gbps.