Departments and teams are typically organized by function – customer service, tech support, sales, billing questions, etc. When a team is busy handling other calls, encourage your callers to leave a message and reassure them that you will get back to them within a reasonable time frame. It’s important that you actually follow through to avoid upsetting your callers.
“Hello, you’ve reached [X company]. We can’t take your call right now, but please leave your name, contact information, and reason for reaching out, and one of our team members will be in touch within 24 hours.” “Hi, you’ve reached [company]. Unfortunately, we’re currently unavailable. But we want to talk to you — so please leave your name and number, as well as your reason for calling, and someone will call back ASAP.” “Hi, you’ve reached [company]. We’re available by phone from [hour] to [hour] [time zone] Monday through Friday [optional: and from hour to hour on the weekends]. You can also contact us by going to our website, [URL], and live-chatting or emailing us. If you’d like us to call you back, please leave your name and number after the beep.” “Hello, you’ve reached [company]. If you’re looking for information on [X], please check out our [Facebook page, company website, etc.] If you want to know more about [Y], take a look at [Z page on our site, our YouTube channel, etc.] Still have more questions, or just want to hear our lovely voices? Leave your name and number, and we’ll return your call straight away.”

This is the WORST. VOICE MAIL. GREETING. EVER. I laughed when Tyler mentioned it on his blog last week, because I had just been talking about it with a friend the week before.
Using your cell phone to record a voicemail message isn't always easy. Between remembering what to say and getting the right timing, it's tricky. But your phone does have a playback option, and it's easy to listen to and review your message. For some people, though, cutting off the end of a message is a funny way to trick people and catch them off guard. In most situations, callers won't know it's intentional and will think you're far less than tech savvy. Definitely not an impression I'd want to make.