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Reviewed · Updated 2026-06-19

Onvoy

Provides cloud-based voice, messaging, and unified communication solutions.

Reviewed by the Conversion Gems editorial team ·
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Pricing
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Best for
Telecom providers
Category
CRM & Sales
The bottom line

Onvoy is a Sinch-owned carrier-grade network powering voice and A2P SMS behind the scenes for telcos and cloud platforms — not a direct-to-business SaaS tool.

6.2
Our score
6.2 / 10
Conversion Gems editorial verdict
Custom pricing; contact Sinch for a quote
Features8/10
8 - comprehensive carrier stack (SIP trunking, A2P SMS, E911, STIR/SHAKEN, toll-free, BYOC) with Tier-1 U.S. network depth; lacks developer-friendly self-serve tooling.
Value5/10
5 - no public pricing or transparent rate cards; custom wholesale contracts suit large volume buyers but exclude SMB evaluation.
Ease of use4/10
4 - wholesale carrier integration requires technical telecom expertise, sales engagement, and legal contracting — not accessible without significant effort.
Ecosystem7/10
7 - strong integration within the Sinch platform ecosystem; REST APIs available; connects to major UCaaS and CCaaS stacks as a carrier backbone.
Support7/10
7 - enterprise-grade support via Sinch account management and 24/7 carrier NOC; no self-serve support path for smaller accounts.
What it really is

Onvoy (now Sinch/Inteliquent) — U.S. wholesale telecom carrier for voice, SMS, and 911 infrastructure.

Our take

Onvoy, LLC is a carrier-grade wholesale voice and messaging infrastructure provider, now operating under the Sinch umbrella after Sinch's $1.14B acquisition of Inteliquent in 2021 (onvoy.com redirects to Sinch's voice services). The DB mislabels this as 'CRM & Sales' and 'Freemium' — it is a wholesale telecom infrastructure provider with custom enterprise pricing, serving other telecom carriers, VoIP platforms, and UCaaS vendors rather than end-user businesses buying a sales tool.

Why we rate it

Onvoy's reach as a Tier-1 U.S. carrier (140M+ phone numbers managed, 92% on-net call completion) makes it a foundational piece of U.S. telecom infrastructure. As part of Sinch, it benefits from global reach and a unified API layer, making it a serious choice for platforms that need to own their carrier relationship.

The catch

Zero public pricing, no self-serve onboarding, and minimum volume commitments typical of wholesale carriers mean this is inaccessible for SMBs or startups. The Onvoy brand is also being absorbed into Sinch, creating some identity confusion in the market.

Best for
Telecom carriers needing wholesale voice termination and SIP trunking
VoIP/OTT and UCaaS platforms embedding A2P SMS or E911 compliance
Enterprises building carrier-grade communications infrastructure via Sinch APIs
Not good for
SMBs or startups looking for a simple messaging or CRM tool
Teams wanting transparent self-serve pricing and instant onboarding
Non-telecom use cases such as sales engagement or customer relationship management
Friction report
Time to value
Slow: wholesale telecom contracts require sales negotiations, legal agreements, and technical integration — typical procurement cycles run weeks to months.
Scale breakpoint
Volume minimums and per-route rate negotiation become complex at scale; regulatory compliance (STIR/SHAKEN, robocall mitigation) adds ongoing overhead.
Walled garden
High: once voice infrastructure and numbering are embedded in a platform via Onvoy/Sinch, porting and migration involve significant carrier coordination and potential service interruption.

A look inside

Onvoy product screenshot

Frequently Asked Questions

Alternatives

Step up

Sinch Enterprise (full CPaaS suite) for platforms needing global carrier coverage beyond U.S. wholesale voice.

Lighter alternative

Twilio (Elastic SIP Trunking or Messaging) for developer teams wanting self-serve carrier access with transparent per-minute/per-message pricing.

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Tags

#Telecommunications#VoIP

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