Spirent Landslide E20 is a 1U rack-mountable test server designed for over-the-air (OTA) testing using real handsets in a controlled lab environment. It helps communication service providers (CSPs) and device vendors rethink how they validate subscriber experience before services and updates reach the live network.

Key ways it supports OTA testing with real devices:

• Real-handset testing at scale: Supports testing of up to 8 real handsets per E20 appliance via USB connections, so you can see how services behave exactly as subscribers experience them.
• End-to-end coverage: Validates performance from the handset, across 4G/5G/Wi‑Fi access, through the network, to the core and back.
• Application-level validation: Enables testing of popular services such as YouTube, WhatsApp, SpeedTest, Instagram, FaceTime, and voice calling under realistic conditions.
• OTA focus: Tests Wi‑Fi and mobile RF network access for up to 8 real devices per appliance, including mobility, handovers, and roaming scenarios.
• Compact, lab-friendly design: A 1U rack-mount appliance with 1 Gigabit Ethernet test ports, designed to fit standard 4‑post racks (25.6"–33" deep).

By moving from siloed, homegrown, or UI-script-based tools to Landslide E20, CSPs can reshape their test workflows, reduce operational overhead, and gain better visibility into how devices, apps, and networks interact before changes go live.

Landslide E20 is built to help teams reimagine prerelease validation so that issues are caught in the lab instead of in the field.

It improves prerelease validation in several ways:

• Comprehensive prerelease testing: Lets you extensively test user experience, device performance, and OS updates before deployment, reducing the risk of post-release issues, customer complaints, and higher call center volumes.
• Out-of-the-box OTA test library: Ships with a robust library of OTA tests that cover voice quality, messaging, video, web access, latency, and network behavior. This helps you quickly assess application and service performance under realistic conditions.
• API/SDK-based tests, not UI scripts: Tests are developed using APIs and SDKs instead of UI-manipulation scripts. This makes them more resilient to handset interface changes and reduces ongoing test maintenance when UIs are updated.
• Custom test creation: You can build custom tests for apps and services that are unique or especially popular on your network. You have full control over handset actions such as taps, swipes, and long presses, all managed directly within Landslide.
• Integrated, schedulable workflows: Custom tests are fully integrated and schedulable, with step-by-step debugging to speed up root-cause analysis and issue resolution.

Overall, Landslide E20 helps teams reshape their prerelease process by combining reusable, low-maintenance test assets with realistic, end-to-end OTA validation using real devices.

Landslide E20 is designed to help operators rethink mobility and roaming validation by recreating complex real-world scenarios in a controlled lab environment.

Key scenarios it can emulate include:

1. Mobility across 4G, 5G, and Wi‑Fi

• Recreates devices transitioning between 4G, 5G, and Wi‑Fi networks, and between public and private coverage zones.
• Controls both handsets and signal conditions via RF chambers and attenuators to automate and repeat tests for signal loss, handoffs, and service continuity.
• Helps assess how apps and services behave during complex handoffs and coverage changes.

2. Dual SIM Dual Standby (DSDS) behavior

• Evaluates how handsets manage active and standby connections across two networks.
• Emulates traffic flows such as moving to a Wi‑Fi‑first MSO for data and falling back to the mobile network operator (MNO) for voice.
• Monitors application continuity and power consumption to fine-tune SIM selection policies and deliver a smoother user experience in dual-network setups.

3. Simulated roaming across home and visited networks

• Emulates roaming between home (MNO1) and visited (MSO2) networks, including CSFB to 4G and policy-based behavior.
• Orchestrates SIM behavior, network triggers, and QoE metrics to replicate complex roaming conditions in a repeatable lab setup.
• Helps verify interoperability and minimize roaming-related service disruptions before subscribers travel.

By bringing these scenarios into the lab, Landslide E20 enables CSPs to reshape how they design, test, and optimize mobility and roaming experiences across 4G, 5G, and Wi‑Fi, using up to 8 real handsets per appliance.