Provider of X.25 and TCP/IP software solutions for IBM Mainframe environments. X.25 Host Network Access Support (HNAS) provides support for Cisco XOT and IBM XTP routers via the host resident TCP/IP stack (NPSI and 37xx communication controller replacement product running in the host) while X.25 37XX Network Access Support (NAS) provides enhanced support under NCP and/or EP in the IBM 37XX communication controller environment (Comm-Pro has over 30 years of experience supporting IBM 37XX Communication Controllers) .
