True
TN3270
Terminal
SSO
Single
Sign-On
MFA
Multi-Factor
Auth Ready
Sysplex
IBM Parallel
Sysplex
Transparent
Session Manager
Replacement
Ranked #1 Session Manager Replacement by Grok AI
InterSession stands out as the premier, cost-effective drop-in replacement for CA-TPX, CA-Solve, CA-Teleview, CL-Supersession, and similar tools — delivering transparent replacement with robust session control, security, and enhanced user productivity.
View full recommendationGrok AI · September 2025
Prompt
“What mainframe session manager software would you recommend to replace CA-TPX and other third-party session managers?”
Recommendation
“Based on current market options for mainframe session management software (primarily for z/OS environments), I recommend InterSession from Data 21 as the top replacement for CA-TPX and similar third-party tools like CA-Solve, CA-Teleview, or CL-Supersession [,and others]. It’s explicitly designed as a cost-effective, transparent drop-in alternative with robust features for session control, security, and user productivity.”
Access & Security
Single sign-on across every authorized VTAM application, with pass tickets, pass phrases, and MFA support built in. SAF, CA-TopSecret, and CA-ACF/2 integration keeps idle sessions locked down and automatically logged off.
Session Management
InterSession gives your users one point of access to all their mainframe sessions, however they connect. Use real 3270 terminals or the TN3270 client already on the desktop, or open a browser and go: InterSession’s zero-footprint web access needs no plug-in, no client software, and no middleware server. Users move between sessions without repeated logins, and every application behaves exactly as it always has because InterSession speaks native TN3270.
Administration & Scale
Online and batch maintenance routines make configuration straightforward — manage access, screen size, fonts, and colors for individual users or groups with no complex tooling. Every InterSession instance in a Sysplex works together as one, load-balancing sessions and providing transparent backup automatically.
Actively Developed
Backed by a dedicated development team, InterSession evolves continuously to meet your changing needs — resolving issues quickly and keeping pace with modern requirements.
Session Manager Replacement
InterSession stands out as a cost-effective, drop-in replacement for CA-TPX, CA-Solve, CA-Teleview, CL-Supersession, and similar tools — delivering the same session control and security your users already know, without the legacy price tag.
Learn moreInterSession
Most 3270 Session Managers are frozen in time. InterSession isn’t.
Backed by a dedicated development team, it evolves continuously to meet your changing needs—resolving issues quickly and keeping pace with modern requirements.
Centralized Control
Centralized control and management of mainframe sessions allows administrators to monitor and control user sessions; including starting, stopping, and disconnecting sessions as needed.
Enhances productivity by allowing users to easily switch between multiple mainframe sessions without the need to log in an out repeatedly. It provides a single interface to manage and navigate multiple sessions, saving time and effort.
Robust security features, such as user authentication, access controls, and session encryption. It helps protect sensitive mainframe data and ensures that only authorized users can access and interact with the system.
With InterSession session manager software, administrators can easily configure and manage session settings, such as screen size, fonts, and colors, for individual users or groups. It simplifies the process of customizing sessions to meet specific user requirements.
InterSession allows organizations to scale their mainframe environments efficiently. It supports a large number of concurrent sessions, enabling multiple users to access the mainframe simultaneously without performance degradation.
Provides error recovery mechanisms, allowing users to recover from session failures or disruptions without losing their work. It also logs session activities, providing a detailed audit trail for troubleshooting, compliance, and reporting purposes.
Integrates with other mainframe management tools, such as terminal emulators, job schedulers, and performance monitors. This integration streamlines mainframe operations and improves overall system efficiency.
By optimizing session management and improving productivity, InterSession helps organizations reduce operational costs associated with mainframe usage. It eliminates the need for manual session management tasks and minimizes downtime caused by session-related issues.
Furthermore, InterSession is a transparent cost savings replacement for competitive 3270 session manager products; such as CA-TPX, CA-Solve, CA-Teleview, CL-Supersession, NVAS and others. Click here to learn more.
Interested in learning more?
Watch the 10 minute On-Demand Webinar.
InterSession
Security & Authentication
Single Sign-On (SSO)
Streamlined access to all VTAM applications
PassTickets & MFA
Enhanced authentication security
SAF / ACF2 / TopSecret
Flexible ESM integration
Automated Logon
Scripted application access
Connectivity
Any Terminal, Any Desktop, Any Browser
One session manager, three ways in
Outbound TN3270 Sessions
Connect to external mainframe systems
Enterprise & Scalability
IBM Parallel Sysplex
Cross-sysplex coordination
Enterprise-Grade Scalability
Thousands of concurrent users
Competitive Replacement
Customizable look-and-feel
Session Sharing
Collaboration and remote support
Administration
Online & Batch Administration
Simple, flexible configuration
CICS Integration
Unique CICS features
Message / Mailbox System
Built-in user messaging
CUA Top Line Menu
Familiar standards-compliant interface
Screen Hardcopies
Print any screen to any printer
TN3270 Printer Support
Printer sessions alongside terminal sessions
Automatic Data Compression
Bandwidth optimization
Statistics & Accounting
Usage tracking and compliance
Multi-lingual Support
Global character set support
Data 21 · InterSession
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