Verify voice quality before it impacts revenue
Measure the real end-to-end voice experience across routes, suppliers, and networks. CSG Assure Voice Quality Testing helps you identify poor-quality paths, compare performance objectively, and protect customer experience fast.
Test call quality the way your customers experience it
Live traffic analysis only captures signaling parameters, not the actual voice stream. CSG Assure Voice Quality Testing measures the true end-to-end caller experience using MOS and POLQA, so you can detect quality issues earlier, compare suppliers more accurately and make better routing decisions.
Protect service quality: Measure perceived call quality using MOS and POLQA plus additional indicators such as noise, speech level, jitter, and packet loss.
Improve supplier decisions: Test your current and prospective suppliers against the quality KPIs that matter most to your business.
Move quickly: Get up and running fast with one-week implementation and a global testing footprint across fixed and mobile networks.
Test, compare, and improve voice quality at scale
Gain objective insight into route and supplier performance, so you can validate customer experience, protect premium traffic, and act faster when quality drops.
Measure the real voice experience
Verify end-to-end call quality using mean opinion score (MOS), a recognized ITU-based measure of audio quality. Assure Voice Quality Testing also measures noise, speech level, jitter, and packet loss to give you a fuller view of route performance.
Test fixed and mobile routing worldwide
Test calls can be placed from your network to an IVR system or one of 600 test nodes across more than 150 countries. That gives you the broadest coverage to assess voice quality across both fixed and mobile networks.
Compare supplier quality with confidence
Test your own services, terminating suppliers, and prospective suppliers using the codec you select. With objective quality data, you can benchmark route performance, validate whether carriers are meeting SLA commitments, and choose suppliers based on real results, not assumptions.
Run tests on your terms
Take full control of interactive and scheduled calls, including two-way MOS testing to confirm the incoming leg delivers the expected call quality.
Verify more in a single test call
Check connectivity, CLI, false answer supervision, MOS A, and MOS B in one test call, so you can reduce test time, lower cost, and get a fuller view of route quality faster.
Protect premium voice services
Automatically verify the voice quality of premium service levels so you can identify weak routes early and reduce the risk of quality-driven traffic loss.
Understand the customer experience
Assess end-customer perception of call speech quality instead of relying only on signaling data that does not reflect the actual audio experience.
Improve route and supplier decisions
Identify routes with a stronger cost-to-quality ratio, validate whether carriers are meeting agreed service levels, and select suppliers based on measurable KPIs tied to service quality.
Deploy fast
Start testing in as little as one week, without a long implementation cycle.
Trusted to deliver real results
Test voice quality with more confidence
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Related resources
CSG Assure Voice Quality Testing
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