telli

Name: telli
Brand: telli
Rating: 4.7 (20 reviews)

AI Native

telli is an AI voice platform that automates high-volume inbound and outbound phone workflows using configurable automated voice agents, telephony management, analytics, and CRM/workflow integrations.

Est 2024|Raised $19.1M|27 Ref Customers

LinkedIn 7K|Web traffic 8K|FTEs 44|HQ Berlin, Germany

MarketsAI Voice Agent Platform CS AI Agent Interactive Voice Response (IVR)Conversation Intelligence

Published Nov 11, 2026

01Common complaints

When transparent, self-serve pricing and predictable unit-costs are required up front
- Quote-led pricing can extend procurement cycles and complicate early ROI modeling. Providers that publish per-minute pricing may be preferable for experimentation and predictable cost modeling.
When an organization pursues an engineering-first platform strategy and requires full control over the voice pipeline
- Engineering-led teams that require control over STT, LLM, and TTS providers, and need fine-grained real-time orchestration, may prefer developer-first vendors.
When the risk/compliance program requires publicly verifiable certifications and detailed documentation prior to vendor selection
- The vendor has trust-center listings, but audit artifacts and certificate details were not fully verifiable from the public materials reviewed. Enterprises may require SOC 2 Type II reports, DPAs, a subprocessor list, and retention policies.
When third-party validation and large-scale independent benchmarks are required for procurement approval
- Many strong vendor ROI claims in case studies are vendor-published; organizations that require large-sample independent validation or analyst benchmarks should seek additional third-party evidence and reference checks.
Current limitations acknowledged by the vendor
- No explicit vendor-maintained limitations list was included in the provided vendor excerpts for this research.
Limitations suggested by reviews
- Prompt/agent versioning and organization challenges as deployments scale
- Perceived UI polish and reporting/dashboard issues for some users
Roadmap items
- Roadmap details were not publicly documented in the materials reviewed for this report.
Scale limitations
- The vendor states the ability to scale to many parallel calls; organizations should validate rate limits, concurrency pricing, carrier/SIP throughput constraints, and failure modes during pilots.
Security / compliance gaps
- SOC 2 Type II is suggested via a trust-center preview, but ISO, HIPAA, and other certifications were not independently verified from the public materials reviewed. Request audit artifacts during procurement.
API limitations
- API documentation is published; organizations should review endpoints, authentication model, webhooks, error handling, and rate limits as part of a technical evaluation.

- When transparent, self-serve pricing and predictable unit-costs are required up front - Quote-led pricing can extend procurement cycles and complicate early ROI modeling. Providers that publish per-minute pricing may be preferable for experimentation and predictable cost modeling. - When an organization pursues an engineering-first platform strategy and requires full control over the voice pipeline - Engineering-led teams that require control over STT, LLM, and TTS providers, and need fine-grained real-time orchestration, may prefer developer-first vendors. - When the risk/compliance program requires publicly verifiable certifications and detailed documentation prior to vendor selection - The vendor has trust-center listings, but audit artifacts and certificate details were not fully verifiable from the public materials reviewed. Enterprises may require SOC 2 Type II reports, DPAs, a subprocessor list, and retention policies. - When third-party validation and large-scale independent benchmarks are required for procurement approval - Many strong vendor ROI claims in case studies are vendor-published; organizations that require large-sample independent validation or analyst benchmarks should seek additional third-party evidence and reference checks. - Current limitations acknowledged by the vendor - No explicit vendor-maintained limitations list was included in the provided vendor excerpts for this research. - Limitations suggested by reviews - Prompt/agent versioning and organization challenges as deployments scale - Perceived UI polish and reporting/dashboard issues for some users - Roadmap items - Roadmap details were not publicly documented in the materials reviewed for this report. - Scale limitations - The vendor states the ability to scale to many parallel calls; organizations should validate rate limits, concurrency pricing, carrier/SIP throughput constraints, and failure modes during pilots. - Security / compliance gaps - SOC 2 Type II is suggested via a trust-center preview, but ISO, HIPAA, and other certifications were not independently verified from the public materials reviewed. Request audit artifacts during procurement. - API limitations - API documentation is published; organizations should review endpoints, authentication model, webhooks, error handling, and rate limits as part of a technical evaluation.

Deal disqualifiers

Highly regulated environments that require strict data residency, bespoke security controls, or on-prem deployments unless the vendor explicitly supports those controls
Workflows requiring extensive custom, low-latency in-call orchestration that favor an API-first, developer-controlled stack

Why some customers leave (churn reasons)

Direct churn narratives specific to telli were not found in the accessible public sources for this report.
Common churn drivers in the voice-agent market that buyers should consider include:
- Rising total cost at scale (minutes, model usage, telephony)
- Limitations in analytics and reporting
- Need for deeper developer control or different integration models
- Compliance or data-residency constraints

02Why they buy

unique selling points supported by reviewer feedback (limited sample)
- Reported ease of use and relatively fast onboarding for some customers (reviewer-reported)
- Reviewer-perceived voice quality in certain deployments
unique selling points that are vendor-claimed and require validation
- Vendor messaging includes positioning statements and scale claims; these should be validated in pilots and reference calls (vendor messaging examples: ranking claims, high-scale execution statements, language-coverage statements).
Areas where competitors may have advantages
- Vapi: clearer published pricing and developer control
- Enterprise contact-center vendors: potentially deeper enterprise governance features and vendor-risk documentation depending on the vendor

- unique selling points supported by reviewer feedback (limited sample) - Reported ease of use and relatively fast onboarding for some customers (reviewer-reported) - Reviewer-perceived voice quality in certain deployments - unique selling points that are vendor-claimed and require validation - Vendor messaging includes positioning statements and scale claims; these should be validated in pilots and reference calls (vendor messaging examples: ranking claims, high-scale execution statements, language-coverage statements). - Areas where competitors may have advantages - Vapi: clearer published pricing and developer control - Enterprise contact-center vendors: potentially deeper enterprise governance features and vendor-risk documentation depending on the vendor

03Field reports

Review platforms (G2)

Overall sentiment snapshot
- G2 lists telli with a high average rating based on a modest number of reviews in the dataset referenced for this report.
- G2 labels some review collection mechanisms as "seller invite," which can bias review populations toward purchasers invited by the vendor.
Positive review excerpts (G2)
- Reviewers cite an intuitive interface and relatively quick onboarding for certain implementations.
- Some reviewers cited responsive customer service and flexibility in configuration.
- These observations are reviewer-reported and reflect individual experiences; they do not constitute a guarantee of identical outcomes across deployments.
Negative / critical themes (G2 summary + review excerpts)
- Some users noted that the interface could be more polished and that versioning and organization of prompts/sub-prompts can be challenging as deployments scale.
- Tags and summaries in reviews included complaints about reporting and dashboard functionality, indicating possible gaps in analytics UX for some customers.

- Overall sentiment snapshot - G2 lists telli with a high average rating based on a modest number of reviews in the dataset referenced for this report. - G2 labels some review collection mechanisms as "seller invite," which can bias review populations toward purchasers invited by the vendor. - Positive review excerpts (G2) - Reviewers cite an intuitive interface and relatively quick onboarding for certain implementations. - Some reviewers cited responsive customer service and flexibility in configuration. - These observations are reviewer-reported and reflect individual experiences; they do not constitute a guarantee of identical outcomes across deployments. - Negative / critical themes (G2 summary + review excerpts) - Some users noted that the interface could be more polished and that versioning and organization of prompts/sub-prompts can be challenging as deployments scale. - Tags and summaries in reviews included complaints about reporting and dashboard functionality, indicating possible gaps in analytics UX for some customers.

Gartner Peer Insights

Attempted but inaccessible / not applicable to telli
- Searches for telli on Gartner Peer Insights surfaced a different company (Tellius); no Gartner Peer Insights page specific to telli was identified in the accessible results for this analysis.

Community / social (Reddit, Hacker News)

Direct telli-specific user discussions were limited in accessible Reddit and Hacker News results.
Broader voice-agent community themes that affect this vendor category include:
- Unexpected costs at scale related to minute-based pricing and model/TTS/telephony add-ons
- Latency and interruption handling
- Edge case handling (name/email capture, corrections, background noise)
- These are category-level concerns and should be validated against vendor references and pilot results for telli specifically.

- Direct telli-specific user discussions were limited in accessible Reddit and Hacker News results. - Broader voice-agent community themes that affect this vendor category include: - Unexpected costs at scale related to minute-based pricing and model/TTS/telephony add-ons - Latency and interruption handling - Edge case handling (name/email capture, corrections, background noise) - These are category-level concerns and should be validated against vendor references and pilot results for telli specifically.

Why customers cited telli (evidence types)

Vendor case studies include statements of operational outcomes such as increases in appointment volume or added calling capacity; these are vendor-published outcomes and should be validated.
Reviewer comments frequently reference ease of onboarding, perceived voice quality, and support responsiveness as reasons for selection.

Case Studies

Vendor-published case study claims (examples)
- Examples of vendor-published outcomes include increased appointment volume and added calling capacity in customer case studies.
Critical evaluation of case study credibility
- Case-study metrics in vendor materials do not disclose methodology, exact baseline volumes, or counterfactuals in the excerpts reviewed. Procurement teams should request:
  - Baseline call volumes and pickup rates
  - Definitions of outcome metrics (e.g., "appointment boost")
  - Time windows and whether results include combined human-plus-automation workflows
  - A/B test designs or time-series evidence when available
Mixed results / failed deployments
- No publicly documented vendor case studies describing failed deployments were identified in the reviewed materials. The absence of negative case studies in vendor marketing is common; this increases the importance of independent reviews and reference calls.

- Vendor-published case study claims (examples) - Examples of vendor-published outcomes include increased appointment volume and added calling capacity in customer case studies. - Critical evaluation of case study credibility - Case-study metrics in vendor materials do not disclose methodology, exact baseline volumes, or counterfactuals in the excerpts reviewed. Procurement teams should request: - Baseline call volumes and pickup rates - Definitions of outcome metrics (e.g., "appointment boost") - Time windows and whether results include combined human-plus-automation workflows - A/B test designs or time-series evidence when available - Mixed results / failed deployments - No publicly documented vendor case studies describing failed deployments were identified in the reviewed materials. The absence of negative case studies in vendor marketing is common; this increases the importance of independent reviews and reference calls.

04Best fit

Company sizes

Likely best fit: mid-market to enterprise B2C organizations with high call volumes and significant contact-handling needs.
Heuristic sizing:
- Mid-market to larger enterprise organizations
- Contact-center or sales-development functions with measurable cost-per-contact or SLA requirements

Industries and verticals

Industries cited in vendor materials and profiles include:
- Energy and home services
- Real estate
- Consumer marketplaces
- Related consumer-facing verticals where high call volume and lead-conversion economics matter

Roles and personas

Decision makers:
- VP/Head of Sales (B2C)
- Head of Customer Operations / Contact Center
- COO / Head of Revenue Operations
- IT/Security for compliance evaluation
End users:
- Sales operations
- Support operations and QA teams
- Revenue operations analysts

Pain points the product addresses

Speed-to-lead (rapid outbound contact following a lead)
Call-center capacity constraints and scaling
After-hours coverage for inbound inquiries
Multi-language reception and triage
Standardization of qualification and scheduling scripts

05The pitch

What the product does (core value proposition in objective terms)

telli is an AI voice platform designed to automate high-volume inbound and outbound customer phone workflows (sales, operations, and customer support) using automated voice agents that can qualify leads, book appointments, handle first-line support, collect payments/data, and route/transfer to human agents when needed. (Vendor primary source provided; also reflected on telli’s site pages.)
The platform includes a no-code "Studio" to build and modify agents, telephony features (phone number management, SIP trunking support), analytics (dashboards, outcomes, transcripts/recordings), and workflow/integration tooling (CRM synchronization, actions during calls, post-call workflows, and an API). (Vendor primary source provided; telli platform pages.)

- telli is an AI voice platform designed to automate high-volume inbound and outbound customer phone workflows (sales, operations, and customer support) using automated voice agents that can qualify leads, book appointments, handle first-line support, collect payments/data, and route/transfer to human agents when needed. (Vendor primary source provided; also reflected on telli’s site pages.) - The platform includes a no-code "Studio" to build and modify agents, telephony features (phone number management, SIP trunking support), analytics (dashboards, outcomes, transcripts/recordings), and workflow/integration tooling (CRM synchronization, actions during calls, post-call workflows, and an API). (Vendor primary source provided; telli platform pages.)

Target market and market positioning

Primary positioning appears to be B2C / consumer-facing organizations with significant call volume (lead response, scheduling, service, collections) that want to scale phone operations without proportional headcount increases.
The vendor states multi-lingual support (dozens of languages in some materials) and describes capability to scale from single concurrent calls to many parallel calls.
A Y Combinator company profile includes a vendor tagline used for marketing. That tagline is a vendor statement and should be treated as messaging rather than independent performance evidence.

- Primary positioning appears to be B2C / consumer-facing organizations with significant call volume (lead response, scheduling, service, collections) that want to scale phone operations without proportional headcount increases. - The vendor states multi-lingual support (dozens of languages in some materials) and describes capability to scale from single concurrent calls to many parallel calls. - A Y Combinator company profile includes a vendor tagline used for marketing. That tagline is a vendor statement and should be treated as messaging rather than independent performance evidence.

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telli

01Common complaints

Deal disqualifiers

Why some customers leave (churn reasons)

02Why they buy

03Field reports

Review platforms (G2)

Gartner Peer Insights

Community / social (Reddit, Hacker News)

Why customers cited telli (evidence types)

Case Studies

04Best fit

Company sizes

Industries and verticals

Roles and personas

Pain points the product addresses

05The pitch

What the product does (core value proposition in objective terms)

Target market and market positioning

How it compares

01Common complaints

Deal disqualifiers

Why some customers leave (churn reasons)

02Why they buy

03Field reports

Review platforms (G2)

Gartner Peer Insights

Community / social (Reddit, Hacker News)

Why customers cited telli (evidence types)

Case Studies

04Best fit

Company sizes

Industries and verticals

Roles and personas

Pain points the product addresses

05The pitch

What the product does (core value proposition in objective terms)

Target market and market positioning

How it compares