Softwr

Customer Support · head to head

Cresta vs Telesign

Cresta logo

Cresta

Customer Support

Real-time AI coaching and autonomous agents that sit on top of an existing contact centre platform

From
On request
Free plan
No
Full reviewWebsite
Telesign logo

Telesign

Telecommunications

Phone number verification and fraud scoring rather than general purpose messaging

From
On request
Free plan
No
Full reviewWebsite

The short version

  • Each has a real cost: Cresta cresta depends on the CCaaS platforms it integrates with, and NICE, Genesys and Five9 are all shipping native real-time assist and auto-QA of their own, so at renewal you may be paying twice for capability your platform vendor will bundle at a discount.; Telesign risk scoring is probabilistic, so tuning thresholds trades fraud caught against genuine users blocked, and somebody has to own that trade-off continuously.
  • They diverge on capability: Cresta covers Real-time agent assist, Telesign covers Phone number verification.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Cresta and Telesign actually diverge.

Attributes where Cresta and Telesign differ
AttributeCrestaTelesign
Pricing modelquotePer message and per verification, priced by destination country
PlatformsWeb, APIWeb, APIs, Java, Python, JavaScript, PHP, C#
CategoryCustomer SupportTelecommunications

Identical on both: starting price (On request), free tier (No), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Cresta

  • Real-time agent assist
  • Autonomous AI Agent
  • Conversation intelligence
  • Automated quality management
  • Behavioural coaching
  • Knowledge surfacing
  • Multilingual deployment
  • Supervisor dashboards

Only in Telesign

  • Phone number verification
  • Phone number intelligence
  • Risk scoring
  • Published SMS rate card
  • Delivery routing

What people use each for

The jobs each tool is most often brought in to do.

Cresta

  • A 1,500-seat telecommunications sales centre that wants conversion lift from live agent prompting without migrating off an incumbent Genesys deploymentnot Telesign
  • An insurance contact centre replacing manual QA sampling of two per cent of calls with automated scoring of every call for regulatory evidencenot Telesign
  • A retail support operation deploying autonomous voice agents on high-volume order status calls while keeping humans on complex claimsnot Telesign
  • A contact centre director who needs to prove which specific agent behaviours drive outcome differences, rather than relying on post-call survey scoresnot Telesign

Telesign

  • Consumer platforms blocking fake account creation at signupnot Cresta
  • Fintechs and marketplaces checking SIM swap history before a high value actionnot Cresta
  • Businesses suffering promotion and free trial abuse from disposable numbersnot Cresta
  • Products needing passcode delivery optimised for completion rather than lowest costnot Cresta

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Cresta

  • Cresta depends on the CCaaS platforms it integrates with, and NICE, Genesys and Five9 are all shipping native real-time assist and auto-QA of their own, so at renewal you may be paying twice for capability your platform vendor will bundle at a discount.
  • Pricing is not published and contracts are seat-based and annual at enterprise scale, which in practice means six-figure commitments and a procurement cycle measured in months rather than weeks.
  • Real-time guidance only pays back where conversation outcomes are measurable and repeatable, so support teams handling long, varied, low-volume cases rarely recover the licence cost.
  • Deploying real-time assist requires agents to accept on-screen prompting mid-call, and contact centres with strong union representation or experienced tenured agents frequently see adoption resistance that no amount of model quality fixes.
  • Automated quality scoring changes what agents are measured on, and organisations that switch from human QA without rewriting their evaluation rubric and appeals process create industrial-relations problems that surface months after go-live.

Telesign

  • Risk scoring is probabilistic, so tuning thresholds trades fraud caught against genuine users blocked, and somebody has to own that trade-off continuously.
  • No voice pricing is published at all: every one of the 233 destinations in its public rate card lists voice as quote only, so voice cost cannot be modelled in advance.
  • It is a verification and risk product, so a business that also needs general purpose messaging will run a second vendor for that traffic.
  • Number intelligence quality varies by country because it depends on operator data availability, and coverage in some markets is thinner than the global claim implies.
  • The underlying carrier assets belong to its sibling companies rather than to Telesign, so network questions route back to a parent whose principal business is not developer APIs.

Pricing, plan by plan

Cresta

On request
  • Cresta$undefined/year
    • AI Agent
    • Agent Assist
    • Conversation Intelligence

Telesign

On request
  • Telesign$undefined/month
    • SMS prices published for 233 destination countries
    • Every voice destination listed as quote only
    • Enterprise agreements normally tied to volume commitments

Which should you pick?

Choose Cresta if

  • You need real-time agent assist.
  • You work on Web, API.
  • You also want autonomous ai agent.
Cresta review

Choose Telesign if

  • You need phone number verification.
  • You work on Web, APIs, Java, Python, JavaScript, PHP, C#.
  • You also want phone number intelligence.
Telesign review

Questions people ask

Is Cresta or Telesign better?
Neither clearly leads. Cresta starts at On request and Telesign at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Cresta or Telesign?
Cresta starts at On request and Telesign at On request.
Does Cresta or Telesign run on more platforms?
Cresta runs on Web, API. Telesign runs on Web, APIs, Java, Python, JavaScript, PHP, C#.
What is Cresta best used for?
Cresta is most often used for a 1,500-seat telecommunications sales centre that wants conversion lift from live agent prompting without migrating off an incumbent genesys deployment, an insurance contact centre replacing manual qa sampling of two per cent of calls with automated scoring of every call for regulatory evidence, a retail support operation deploying autonomous voice agents on high-volume order status calls while keeping humans on complex claims, a contact centre director who needs to prove which specific agent behaviours drive outcome differences, rather than relying on post-call survey scores. Of those, a 1,500-seat telecommunications sales centre that wants conversion lift from live agent prompting without migrating off an incumbent genesys deployment and an insurance contact centre replacing manual qa sampling of two per cent of calls with automated scoring of every call for regulatory evidence are not what Telesign is typically brought in for.
What can Cresta do that Telesign cannot?
Cresta covers Real-time agent assist, Autonomous AI Agent, Conversation intelligence, Automated quality management. Telesign covers Phone number verification, Phone number intelligence, Risk scoring, Published SMS rate card.

Answered from the vendors’ own pages

Cresta: Does Cresta replace my contact centre platform?

No. It is designed to sit on top of NICE, Genesys, Five9, Amazon Connect and similar platforms, which is why it is chosen where a full CCaaS migration is not feasible.

Telesign: Who owns Telesign?

Proximus, the Belgian telecommunications operator. It acquired Telesign in 2017 through its subsidiary BICS and has owned it outright since February 2021. Telesign now sits in Proximus Global alongside BICS and Route Mobile.

Cresta: What does it cost?

Cresta does not publish pricing. Contracts are seat-based and annual, and at the enterprise scale it sells into they are typically six figures per year.

Telesign: Did Telesign go public?

No. A merger with the North Atlantic Acquisition Corporation special purpose vehicle was announced in December 2021 at around 1.3 billion dollars and terminated on 1 July 2022, so it remained within Proximus.

Cresta: Is it viable for a contact centre under 100 seats?

Rarely. The commercial model, implementation effort and required outcome measurement all assume several hundred seats or more.

Telesign: Is Telesign a cheaper way to send one-time passcodes?

No, and that is not its purpose. It routes for verification completion and adds a risk judgement about the number. If you only need cheap message delivery, compare rate card vendors instead.

Cresta: Who owns Cresta?

It is an independent venture-backed company, having raised roughly 282 million USD in total including a 125 million USD Series D in November 2024 co-led by World Innovation Lab and the Qatar Investment Authority.

Share

Related pages

More on Cresta

More on Telesign

Keep looking

Other head to heads