The best solution for testing your telecom environment

TOP Testing Suite from R Systems is an easy to use, automated test solution for end-to-end testing, evaluation, and validation of telecom services. 

With TOP Testing Suite, you can rapidly automate telecom protocol or software test plans, reduce regression testing time from days to minutes and enable continuous testing in line with Agile and DevOps practices. R Systems’ TOP Testing Suite uses an intuitive web-based graphical user interface (GUI) to enable you to efficiently define and manage a broad range of test plans, aggregate the results, and view the reports. Our comprehensive suite of testing tools is a modular, multi-protocol solution based on the JMeter platform, with open-source elements and custom developed R Systems plug-ins. With TOP Testing Suite, you can:
  • Perform advanced functional, load, performance, regression, and stress testing in complex telco environments.
  • Automatically execute various test types in different phases of system deployment.
  • Dynamically test various protocol servers using the black-box approach.

TOP Testing Suite Features

R Systems’ TOP Testing Suite enables functional, load, performance, stress, stability, and configuration testing in complex telecom and IT environments. To help you get the most of it, our team of experts can also help with training, integration in your environment and the CI/CD pipeline, test creation based on your specifications, or Proofs of Concept. 

Telecom specific

TOP Testing Suite provides a full set of testing tools featuring all major industry-wide IT and telecom protocols. It allows extensive testing of BSS/OSS applications, SS7 and IP network elements and E2E telecom services. 

CI/CD, DevOps, Cloud & 5G

With Jenkins as the most popular and widely adopted solution among CI tools used today by software teams, we have developed a plugin which allows the fast and easy integration of the TTS with Jenkins. This allows QA teams to automatically create and plan test cases and easily run tests in a Jenkins Pipeline CI project. CI/CD support, Jenkins integration, J-unit plugin support set a great roadmap for the DevOps model.

Intuitive GUI

TOP Testing Suite is easy to use and provides an intuitive graphical user interface which doesn’t require programming skills and is faster than other GUI tools.

Maintenance and support

TOP Testing Suite comes with expert support ensuring smooth implementation, handover, developments, and prompt customer service, according to established SLAs.

Jira integration

Allows automatically logging tickets with attachments in Jira.

Additional telecom testing functionalities

  • Support for Generic Bootstrapping Architecture (GBA).
  • Statistics and reports using TTS Dashboard Listener.
  • DTLS support within TTS UDP Client.

Protocols supported by R Systems TOP Testing Suite


  • Diameter Client and Server, with Diameter interfaces including: Ro/Gy, Rf, Gx, Sy, S6a/S6d/S6c, Sh, Cx/Dx, SWx, etc.
  • EAP Identity/Aka/Prime/Pseudonyms/IMSI encryption functionalities
  • Flexible Diameter dictionary


  • MAP – all versions supported
  • CAP – all Camel phases supported
  • INAP – currently supporting ETSI Core INAP CS-1
  • Support for both ANSI and ITU standards, at MTP, TCAP and SCCP layers.
  • Easy to add custom protocol extensions, based on ASN.1 specifications.

Additional plug-ins

  • LDAP
  • Telnet/SSH
  • Radius
  • Web Services (SOAP/HTTP)
  • SMPP
  • HTTP Server
  • TTS SMTP Server Sampler
  • DNS_Client & Server.

Defining 5G HTTP2 scenarios using R Systems TTS

Check out the video tutorial for a quick overview of the plugin and how it can be used for IMSI subscriber registration and deregistration between AMF & UDM 5G network functions.

VoLTE Testing

R Systems’ TOP Testing Suite can simulate both Diameter and SIP signaling used in VoLTE session management. The Diameter interfaces supported on top of Base Protocol include: Cx, Dh, Dx, Gy, Gx, Rf, Ro, Rx, S6a, Sh, S9, Sy.

The SIP plugin provides connectivity to VoLTE x-CSCF elements allowing for sending SIP messages used in registration, IMS session initiation, charging and release.

Download the solution brief here.

Customer use cases and success stories

Here’s what some of our customers had to say about R Systems’ TOP Testing Suite:

The support services provided by R Systems for the TOP Testing Suite have been excellent, I couldn’t have asked for more. A dedicated expert was always available, helping with the creation and implementation of the initial test cases, throughout handover, further developments and ongoing support later on.

Swisscom, Switzerland

R Systems TTS is an easy to use tool, with good documentation of features and release notes. R Systems engineers are very supportive and knowledgeable, they demonstrated professionalism and skills on many occasions. They understand our requirements and deliver expected results. Overall Sprint is very happy customer of R Systems Top Tool, keep up the good work and we expect the continued support.

Sprint, USA


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