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In Testing, Assurance & Observability / Roaming Performance Assurance

VoLTE Roaming Testing: Assure Seamless Global Voice Interoperability

Mobileum’s VoLTE Roaming Testing ensures voice, SMS, and IMS service interoperability across global networks enhacing quality, compliance, and user satisfaction.

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VoLTE Roaming Testing
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Product Overview

What it is...

Trusted VoLTE Testing Ecosystem

Mobileum’s GlobalRoamer® VoLTE Roaming Testing ensures seamless interoperability for voice, SMS, and IMS services across global networks. With automated testing and GSMA IR.81 compliance, it validates service availability and performance, reduces manual errors, and accelerates time-to-resolution ensuring a superior user experience in VoLTE roaming environments.

and why it matters...

Future-Proof Your Voice Services

As 2G and 3G networks phase out, VoLTE becomes essential for maintaining voice continuity and unlocking 5G voice evolution through VoNR. Ensuring consistent quality of service across roaming partners reduces churn, boosts loyalty, and safeguards regulatory compliance making VoLTE assurance a strategic priority for telecom operators.

Industry Challenges

Addressing VoLTE Roaming Pitfalls That Impact QoS

1
  • Inconsistent call setup and dropped VoLTE calls lead to poor roaming experience and increased customer churn
2
  • Troubleshooting delays in multi-operator environments make issue resolution slow and inefficient
3
  • Lack of IMS interoperability and fallback validation affects voice continuity during roaming
4
  • Growing complexity with 5G readiness and VoNR transitions requires advanced automation and proactive testing
Key Product Features

VoLTE Access & Registration Testing

  • Network Authentication:
    Validates VoLTE registration across multiple roaming networks.
  • IMS Interoperability:
    Ensures seamless call setup and supplementary voice services.
  • VoLTE Basic Services:
    Tests call waiting, call hold, and call forwarding functions.

Voice Quality & Performance Validation

  • Call Audio Testing:
    Measures MOS, latency, jitter, and packet loss.
  • VoLTE Fallback:
    Ensures smooth transitions between LTE, 5G, and fallback networks.
  • VoLTE Emergency Call:
    Provides CSFB functionality if the network doesn’t support IMS Emergency Call.


Messaging Verification for Roaming Scenarios

  • SMSoIP Validation:
    Tests VoLTE-based SMS delivery and reliability.
  • SMS over NAS Protocol:
    Ensures direct communication between the UE and core network.
  • Delivery Latency Monitoring:
    Detects SMS and RCS transmission delays.

Empower Your Teams with Proactive VoLTE Roaming Assurance

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Mobileum Active VoLTE Roaming Testing
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Key Benefits

Key Benefits

8

Seamless Connectivity

Ensures VoLTE interoperability and smooth service handovers.

9

Proactive Issue Detection

Automated testing detects and resolves VoLTE roaming issues early.

10

SLA Compliance

Validates service reliability to meet regulatory and operator agreements.

Product Spotlight

Product Spotlight

11

5G Voice Readiness

Ensures seamless VoLTE services, preparing networks for 5G VoNR deployment.

12

Real-Time Monitoring

Provides continuous VoLTE service testing across global networks.

13

Troubleshooting & Alarms

Cost-Effective, Automated, Fast, Error-Free Fault Detection.

14

Network Optimization

Identifies performance bottlenecks for improved VoLTE service quality.

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

Stop VoLTE Roaming Issues Before They Reach Customers

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