This segment includes enterprise equipment services and infrastructure equipment services.

• Enterprise equipment services — Enterprise equipment consists of telecom equipment and systems that are based in business locations, and that connect either with the public switched telephone network (PSTN) or to private data voice networks.

• Carrier infrastructure equipment services — Infrastructure equipment includes all forms of equipment (and some systems and integrally related services) that combine to form the communications networks used by public service operators worldwide. A good example is the PSTN. Others include IP and other data networks as well as mobile networks. Infrastructure equipment includes six major building blocks: switching, transport, access, signaling, support and mobile infrastructure.