Callab AI
AI voice agents for on-prem telephony stack.
About Callab AI
58% of the $400B call center industry runs on on-prem phone systems, and until now bringing AI voice automation to them meant ripping out their entire infrastructure first. That's the largest unserved segment in the market. Callab AI connects directly to legacy PBX systems like Avaya, Cisco UCM, and Mitel, and automates up to 70% of call volume with zero migration needed. We plug into these environments without requiring a rip-and-replace. We serve clients across three continents, including brands like Dunkin Donuts.
Public traction evidence
Each signal links to the public source used for attribution.
- LinkedIn
When we started building Callab AI (YC P26) AI over a year ago, we assumed AI models would be our wedge. That assumption turned out to be wrong. After integrating with major enterprise contact… | Haithem Kchaou
That assumption turned out to be wrong.
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Y Combinator just released their Requests for Startups for the Summer 2026 batch, and one of the categories that stood out to me is AI-Native Service Companies. Historically, agencies and software development shops have been treated as small or medium-sized businesses rather Show more
Y Combinator just released their Requests for Startups for the Summer 2026 batch, and one of the categories that stood out to me is AI-Native Service Companies. Historically, agencies and software development shops have been treated as small or medium-sized businesses rather...
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Previously reposted @karrisaarinen but @nico_laqua's answer is also on point 👌.
Previously reposted @karrisaarinen but @nico_laqua's answer is also on point 👌. The main takeaway from this is there's always many paths to go from point A to B and none of them is necessarily right/wrong.
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best PR move in history
best PR move in history
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8 weeks in SF and the funniest thing is seeing familiar faces in cafes and not knowing if it's actually them or not.
8 weeks in SF and the funniest thing is seeing familiar faces in cafes and not knowing if it's actually them or not. Just realized I’ve been working right next to @dwarkesh_sp in a random cafe
- LinkedIn
XHXdC hashtag #react hashtag #azure …more
XHXdC hashtag #react hashtag #azure …more