What do you do if you can't hear a voicemail from a recruiter?

Excited about a potential interview, but I'm also kind of upset since i have no idea what the job is for and i could barely here the voicemail.

In this scenario what do you do? I couldn't even make out the recruiters name let alone the job title or the company. :'(

I normally apply to around 5 jobs a day.

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