SCO Embedded Configuration Toolkit Whitepaper
Chapter 4, Toolkit features

Supported networking protocols

Supported networking protocols

Disk based and diskless clients, stand-alone systems (installation only) and simple networked systems utilize standard (OpenServer Release 5.0) TCP/IP protocols for all network services, including NetBIOS, SLIP and PPP serial line protocols, and the SNMP network management system.

The NTA API is supplied for the transfer of files from disk based and diskless clients to embedded servers.