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In Testing, Assurance & Observability / Service Assurance Use Cases

IMS & Voice Testing: Ensure Unmatched Voice Quality with Active Monitoring

Mobileum’s IMS Voice Testing ensures crystal-clear voice services across all networks with real-time diagnostics, VoNR validation, and proactive issue resolution.

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IMS & Voice Testing
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Product Overview

What it is...

End-to-End Voice Quality Testing

Mobileum’s IMS Voice Testing actively simulates real voice calls over 2G to 5G, VoLTE, VoWiFi, and VoNR networks. Using smart probes and IMS clients, it provides real-time insights into voice quality, network performance, and service reliability — empowering operators to validate end-user experience at scale.

and why it matters...

Deliver Superior Voice Quality

Delivering superior voice quality across diverse network technologies reduces churn, boosts customer satisfaction, and protects brand perception. With real-time fault detection and proactive optimization, Mobileum’s solution minimizes disruptions and ensures consistent voice experiences across IMS-based and legacy infrastructures.

Quick View: How It Works

Industry Challenges

Eliminating Barriers to High-Quality Voice

1
  • Inconsistent voice quality across VoLTE, VoWiFi, and 5G due to unvalidated call scenarios and dynamic network conditions
2
  • Service degradation in fallback situations such as EPSFB and CSFB, impacting user experience and emergency call reliability
3
  • Lack of visibility into real-time performance for voice calls and supplementary services like IVR, call forwarding, and USSD
4
  • High operational costs and delayed resolution from reactive testing and manual fault detection methods
Key Product Features

Robust Voice Testing Approaches

  • VoNR, EPSFB, & VoLTE: 
    Radio, Core, and Smartphones-based
  • ViLTE:
    Radio
  • VoWiFi:
    Untrusted non-3GPP access, EAP-AKA authentication
  • SSoIMS:
    Supplementary Services, Forwarding, Barring, Multi-Party, Call Hold, among others
  • SMS/SMSoIP:
    Radio, Core, A2P, P2P, M2M

Revenue-Impacting Assurance

  • Seamless call continuity in Fallback scenarios
  • Mean Opionion Scores, Voice Codecs and Call performance metrics
  • Early Fault detection & isolation 
  • Validates VoNR, VoLTE, VoWiFi, EPSFB, CSFB, VoIP, 2G/3G, PSTN, E.911
  • Regulatory & SLA Compliance


Automated Testing, Troubleshooting and Reporting

  • Cross-Test E2E across all deployed Voice and Emergency Calls on non-3GPP, 2G to 5G (NSA and SA)
  • Test inter-technology  fallbacksto validate cross-vendor setups
  • VoLTE and VoNR nationally and internationally

Optimize Voice Quality & Network Efficiency

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Key Benefits

Key Benefits

8

Superior Performance

Real-time diagnostics, proactive fault management, minimized downtime.

9

Operational Efficiency

Optimize resources, minimize disruptions, reduced OpEx.

10

Excellent Experience

Enhanced voice quality, higher customer satisfaction, reduced churn.

Product Spotlight

Product Spotlight

11

QoS & QoE Mapping

Content, transport, adaptation, and delivery quality. 

12

Radio Interfaces

Verify all QoS Layers from end-subscribers perspective.

13

Smartphone Experience

Smartphone-based testing for real user experience insights.

14

Core Network Interfaces

Supports all network technologies.

Why Mobileum

  • Trusted Globally:

    Assuring service quality for 1,000+ CSPs worldwide

  • Full Network Visibility:

    From lab to live, ensure quality across every layer

  • Real-Time Assurance:

    Detect, resolve, and optimize before users notice

  • Smarter Testing at Scale:

    Automate validation across 5G, IoT, eSIM, and roaming

Additional Resources

Additional Resources

Future-Proof Your Voice Services

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