TL;DR: Callab AI is a Y Combinator Spring 2026 startup AI voice agents for on-prem telephony stack. , currently active with a team of 7.
AI voice agents for on-prem telephony stack.
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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.
Yes. Callab AI was funded by Y Combinator in the Spring 2026 batch. AI voice agents for on-prem telephony stack.
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 automat…
Callab AI was part of Y Combinator's Spring 2026 batch.
Callab AI has a team of 7 people according to Y Combinator's directory.
Callab AI is currently listed as Active with a team of 7 in Y Combinator's directory.
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