Carbyne, a developer of cloud-based solutions for emergency call centers, has raised US$100 million in a funding round led by AT&T.

The company has now secured approximately US$136 million in total funding.

The funding round also includes investments from Socium Ventures, Cox Enterprises, Valor Equity Partners, General Global Capital, Hanaco Ventures, TalC, Sandiip Bhammer, Elsted Capital Partners, FinTLV, and Founders Fund.