To not answer an unknown number

[Patentreegml]

I am a supply teacher, furloughed, and looking for jobs around the Chester area.

I have just had an unknown number call me which said it was from Birmingham. I didn't answer as usually I wait for unknown numbers to finish and then google the number.
Google did not have any info on the number.
No voicemail was left.

I'm just worried incase it was important.
But I can't think who would ring me from Birmingham.
But surely any job application callbacks would leave a voicemail?

@Serin if answer a withheld number if I had a relative in hospital or if I was expecting a call but wouldn't normally

I don't usually answer if the number is withheld or I don't recognise it. I have done lately as I'm pregnant and both hospital and midwife are private numbers.
If I was applying for jobs I would answer just incase as they may not bother to leave a message and just call the next person.
I understand it's difficult because of what you've been through but now you're left wondering.

Regarding your point about job callbacks leaving voicemails: you're right that most would likely do so. However, there's always the chance of human error or some other reason a message might not be left.