For your own sake, learn the proper etiquette for handling an important missed called.
If you have to call back, be mindful of how VoIP apps can save money on calls.
you’ve got the option to place cheap and sometimes free calls to your friends and family.

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If you might’t make a call, just tell them.
you might alsoset up custom text messagesthat automatically respond to missed calls.
Autoresponders
To be polite and professional, give your caller a chance to say something.
Allow them to leave a voice message.
Use an autoresponder for this purpose.
Cellphone services and VoIP services have this feature.
Visual Voicemail
In the age of Skype and Zoom, voicemail is increasingly old-fashioned.
You don’t want to sit and listen to every message in your inbox.
You want to be able to choose which one to listen to and treat each one individually.
This is possible with visual voicemail.
The chances are good your smartphone has this feature.
Alternatively, check thislist of visual voicemail solutions.
This makes it easier to verify voicemail and react without having to listen.