Mexico-focused early-stage and growth equity fund manager Dalus Capital has led a US$3 million Series A round for Sirena, a Mexico-based developer of communications software for businesses. Latin America-focused accelerator and early-stage investment firm NXTP Labs also participated in the funding round. The company plans to use the funds to develop new communication and artificial intelligence-based products and functionalities. Sirena, which has offices in Argentina, Mexico and Brazil and customers throughout Latin America and Spain, also intends to use the funding to expand its geographic presence.