2G Network Emulator

Simulates GSM MSC, MGW, HLR, VLR
2G Network Emulator

Simulates GSM MSC, MGW, HLR, VLR


The Valid8 2G Network Emulator provides an all-in-one, cost-effective and ultra-portable 2G network for demonstration, testing and training purposes.

What It Can Do For You

The Valid8 2G Network Emulator is capable of simulating and testing several devices individually or in parallel and is scalable to fit your needs. It enables testing of the A interface and the Gb interface over IP towards the BSC.

Why It’s Different

  • Scalable software-based architecture can run on a range of hardware from COTS and high-end customer provided hardware to Virtual Machines and the Cloud (e.g. Amazon AWS) for maximum versatility and performance
  • Web-based UI is easy to learn
  • HTTP API enable integration with automation test systems and other equipment
  • Stateful modeling provides accurate emulation of network elements


  • BSSMAP request/response messages for call handling, mobility management
  • Mobile calling - MTC and MOC
  • Flexible, configurable dial-plan - options to page other mobiles, simulate PSTN terminated call and play reference media files, or media echo
  • SMS - outbound and inbound
  • Runs over SIGTRAN/SCTP
  • Generate valid and invalid/negative messages and call-scenarios
  • Supports sending invalid responses including malformed, dropped and misordered packets
  • Alerts and notifications
  • Check parameters in messages from SUT and flag errros


The Valid8 2G Network Emulator is compromised of multiple subsystems that are available individually or in parallel, and are scalable to fit your needs. The individual emulators are controllable through their call controllers, and the traffic can be captured through use of a remote capture tool such as Wireshark.

  • MSC
  • SGSN
  • GGSN
  • Call Attempts
  • Call Successes
  • Call Failures
  • Location Update Attempts
  • Location Update Successes
  • Location Update Failures
  • Calls per second (CPS)
  • Call setup time
  • Call tear down time
  • Media Tx Packets (audio)
  • Media Rx Packets (audio)
Configurable Parameters
  • Call session length
  • Concurrent calls/endpoints

Automation API

User commands can be fully automated using HTTP API. This includes performing all test control functions as well as collecting results and metrics.


The application’s subsystems can be edited directly in the browser using TDL or by using the graphical tools seen below. The Message Workshop allows for creating of test scenarios directly from the hex stream of a remote capture, while the Graphical Editor allows for creating customized call scenarios by dragging and dropping the call flow to meet your test needs.

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Use Cases

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2G Network Emulator
2G Network Emulator

Summary of Specifications

The Valid8 2G Network Emulator is capable of simulating and testing several devices individually or in parallel and is scalable to fit your needs.



  • 3GPP TS 08.08, 3GPP TS 48.008 -- BSSMAP / DTAP 
  • 3GPP TS 04.08 -- MM / CC 
  • 3GPP TS 04.18 -- RR 
  • 3GPP TS 03.40, 3GPP TS 04.11 -- SMS 
  • IETF RFC3550 - RTP / RTCP 

Network Layer Capabilities and Security 

  • ‍IPv4, IPv6 (on request) 
  • UDP, TCP, SCTP transport modes 
  • DNS 
  • DHCP 
  • TLS 1.2, 1.1, 1.0 
  • SSL 3.0 
  • SRTP 
  • Network delays and packet loss 

Test Scripts 

  • ‍CS MO call 
  • CS MT call 
  • CS MO-MT call 
  • Outgoing SMS 
  • Incoming SMS 


  • ‍Packet Routing and Transfer Functions IP Address Allocation 
  • Interface Gb to BSC 
  • Interface Gn to GGSN


  • ‍Packet Routing and Transfer Functions 
  • IP Address Allocation 
  • Interface Gn to SGSN 
  • Interface Gi to external PDN 


  • ‍Call Attempts 
  • Call Successes 
  • Call Failures 
  • Location Update Attempts 
  • Location Update Successes 
  • Location Update Failures 


  • ‍Calls per second (CPS) 
  • Call setup time 
  • Call tear down time 
  • Media Tx Packets (audio) 
  • Media Rx Packets (audio) 

Quality Testing 

  • ‍Voice Quality Analysis 
  • QoE 

Product Details


  • Intel-based; scalable to meet performance needs


  • Base Kit - 2G Network Emulator

Operating System

  • Protocol Engine (Linux-based)

User Interface

  • Browser-based, touch-optimized graphical user interface



Hardware Dimensions

  • M1: 4.5" x 4.5" x 1.75"
  • M3: 19" x 15.75" x 3.5"

Power Supply

  • M3: 520W AC to DC, 100-240v
All Solutions

Valid8 exports its products strictly in accordance with all US Export Control laws and regulations which shall apply to any purchase or order. Specifications are subject to change without notice.

500 West Cummings Park, Suite 6550 Woburn, MA 01801
p: +1-855-482-5438
f: +1-781-996-3708

Ordering Information

  • Product Name: 2G Network Emulator
  • Product Code: 2G-sw-core-network-emulator
Datasheet Page

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