Olivier Pailhès, who co-founded Aircall in Paris in 2014, has returned as its chief executive. He replaces Scott Chancellor and takes over a business phone company that now sells AI voice agents.

Aircall announced the change on Thursday in a press release . Pailhès was Aircall CEO from its founding until 2023 and has stayed on its board since then. The release does not say why Chancellor is leaving or what he will do next.

“Twelve years after we started Aircall, AI has handed us a rare opportunity; to bring voice back to the centre of customer conversations,” Pailhès said in the release.

A bigger company than he left

Aircall says it now has more than 24,000 customers in over 100 countries. Its annual recurring revenue has passed $250m. Its software lets sales and support teams handle calls, SMS and WhatsApp messages in one place. It connects to more than 250 other business tools.

Pailhès started the company with Jonathan Anguelov, Pierre-Baptiste Béchu and Xavier Durand.…