It makes sense to have an after-hours / weekend voicemail greeting for important teams at your business so that your clients feel confident that they will be taken care of. You may also suggest alternate resources like a help forum, knowledge base, or online chat to support customers while closed, if available.
Hi Deborah, thanks for reading! To delete a voicemail, open the Phone app and tap Voicemail. In the top right of your screen, tap Edit. Then, tap the bubble that appears next to each of your messages to select it. If you would like to delete all of your voicemail messages, tap every bubble until they’re each filled with a blue check mark icon.

Consider for a moment how your phone is currently being answered. Professional courtesy is quite often not the standard for many college students. An abrupt "Yeah!" could be listed among the more courteous greetings. The more outrageous remarks will often buy you a major black mark in the professionalism category—even if it was your roommate answering your phone and acting crazy. A simple "This is ____" is always a pleasant change for a college student call. Make the change today, before the next (or first) employer phone call. If you have a landline, you should also encourage your roommate to do the same.
Does your organization have a witty catchphrase or slogan? If so, use that to your advantage. Here is one that could be tailored towards a custom software company: