Voicemails

Voicemails have been suggested a few times on here. I RARELY ever leave them cause even if someone doesn't pick up Ill just text them. But I just left a chick a voicemail after she texted me. I just made a brief message and tried to be really calm and cool. I think I may have talked too fast and I told her to call me when she gets a second which was a mistake. Should've (obviously) talked slow and then just said "we'll talk later peace"

But oh we'll. She'll get to hear my voice. But the basic premise of leaving voicemails is if a girl is giving you not much to work with you hit her up and just leave a purposeless voicemail in a cool smooth voice?