Control and streamline the way users access 3270 applications.

Replicate your current solution and save.

InterSession does the adapting, so your end-users don't have to.

End-of-Life Situation

Has your current vendor announced product end-of-life/support? Maintain continuity with our cost effective fully supported and seamless replacement solution. Contact us today to schedule a presentation tailored to your specific replacement requirement.

Cost Reduction Scenario

Looking to replace a more expensive product with a less expensive comparable one? InterSession is the answer. With proof of purchase of a competitive solution, the License fee for InterSession is waived and you pay only a low Annual Subscription. Contact us today for details.

Sample Emulation Screen Shots:


NVAS Conversion Guide Request
CA Teleview Conversion Guide Request
CA-TPX Conversion Guide Request


Network Director Conversion Guide Request


SuperSession Conversion Guide Request


Solve Access MAI Conversion Guide Request


Solve Access Easinet Conversion Guide Request
Advantages of replacing with InterSession:
  • Cost savings
  • Lower CPU overhead & faster response time
  • Look-and-Feel emulation
  • Functional continuity
  • Automated conversion aids
  • zSeries 3270 Web Gateway
  • Little to no end-user training
  • Reduced Administration effort

First Step:
Schedule a Zoom consultation to discuss your needs and specific use case.

Get Started Today!


  • Single and multiple Session possibilities
  • Automated logon to applications
  • Built in TN3270 Server for reduced overhead
  • Built in Web Server allowing access to 3270 applications via standard web browser
  • Outbound TN3270 Sessions
  • Individual screen layout
  • Help System
  • Easy administration with on-line maintenance routines
  • Flexible security and authorization system
  • Unique CICS features increases security and simplifies maintenance
  • Supports CICS TS (Transaction Server)
  • Built in Message/Mailbox System
  • CUA-based Top Line Menu
  • Screen hardcopies to any printer
  • Support for TN3270 printers
  • Ability to share sessions with other users
  • Cut and paste data between sessions
  • Automatic data compression
  • Statistics and accounting information
  • Multi-lingual possibilities for all screen text, support for non-latin SBCS (Russian, Arabic...)
  • Supports all IBM Mainframe Operating Systems
  • Supports all Application Host Systems
Enterprising Software
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About Data 21

Data 21 Inc. is a privately held veteran owned California Corporation. Since inception in 1980, our mission has been, and continues to be, delivering innovative, high quality, cost effective mainframe centric software solutions that empower Business' and enrich End-Users in the workplace. We pride ourselves on excellent product and customer support satisfaction ratings, and the fact that our products have become trusted integral daily production necessities at hundreds of mainframe installations around the world.

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