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Top IVR Software for Voice Customization

6 IVR software ranked by rating, review volume and listing quality.

Between them, the 6 IVR software on this page cover call center (5) and survey management (5). 6 of them have written a profile you can read before you get in touch.

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IVR Studio
Phone Key Input · Text to Speech · Call Logging
IVR Studio is the interactive voice response product from Voicent. Teams design phone call flows visually and connect them to web applications and other systems.
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Smart IVR
Phone Key Input · Text to Speech · Call Logging
Smart IVR is an interactive voice response platform from Interactive Powers.
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Callshark
IVR / Voice Recognition · Phone Key Input · Text to Speech
Callshark is call tracking software built from scratch in 2020. It shows marketers which of their online and offline campaigns produce phone calls.
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Natterbox
IVR / Voice Recognition · Interactive Voice Response (IVR) · Phone Key Input
Natterbox is a cloud telephony platform that runs entirely within Salesforce. The vendor describes it as the first end-to-end phone service managed inside that CRM.
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Replicant Voice
Interactive Voice Response (IVR) · Call Center Management · Inbound Call Center
Replicant Voice is a ready-made product that uses conversational AI to handle first-line customer service calls.
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DialogTech
Call Logging · Call Recording · Call Routing
DialogTech is a call tracking and analytics product that now sits under the Invoca name. It records phone calls that marketing generates and ties them to the campaigns behind them.
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Artificial Intelligence - AI

6 Oct 2026 · TrustList Editorial

Island raises $400M to govern AI agents from its enterprise browser

The Series F, led by Evolution Equity Partners at a $6.4B valuation, pays for an "agentic control plane" that has no release date yet.

Artificial Intelligence - AI

6 Oct 2026 · TrustList Editorial

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6 Oct 2026 · TrustList Editorial

OneByZero raises $20m to run AI agents inside Asian enterprises

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