Place it at the start of a chat scene, just before the reply appears, then follow it with the WhatsApp message sound to keep the conversation moving, and use Olha a Mensagem when the recipient finally notices it.
Sobre este som
This is a short SMS alert sound titled São Paulo, lasting about 2.7 seconds, built around a brief notification-style tone that cuts through a quiet room. It feels urgent and attention-grabbing, like a message that needs checking straight away, without sounding harsh or panicked. It works best as a quick heads-up that something has just arrived.