“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.”
If your job involves a lot of talking on the phone, take the time to learn the NATO phonetic alphabet. "If you need to spell something out, you'll always have a way to clarify which letter you've said without having to think about it, and it sounds more professional than, 'B as in boy, L as in...uhhh...Larry.'"

6. SMILE. Okay, this one isn't actually a phone greeting, but a smile will make every greeting better. People are programmed to mimic the mental and emotional states of those around us, and we can hear whether or not the person on the other end is smiling.
The simple truth is that you need to be more aware of what you’re leaving for other people to hear. Sure, this doesn’t always register as a priority for users, but it’s never too late to reassess your greeting. a. Reading/Speaking in the Imperfect Tone: Tone is absolutely everything. Users don’t want to come off as being too nice, as it sounds insincere, or being too terse, as it can be interpreted as being rude. That being said, striking the right balance is absolutely essential. Your greeting exists as its own entity, and therefore, it should NOT rely on callers’ familiarity with you. Instead, it needs to appeal to the masses. As such, your inflection, i.e. the way you state your name and directions, needs to be both welcoming and firm. b. Injecting Humor & Insincerity: While humor/light heartedness can be welcoming, it can also convey a sense of informality, insincerity, and ultimately unprofessionalism. Why, because you’re not there to lend your humor or to contextualize. Instead, you’re assuming the caller has a working knowledge of your personality to ground the message. Though this might not sound like it’s all that terrible—it can be detrimental. As stated above, one should NEVER rely on a caller’s familiarity with you. Instead, aim to appeal to the masses. Humor is ultimately subjective, meaning not everyone has the same tastes; therefore, someone is bound to be turned off by a quirky or off-color remark. While implementing a light-hearted or even tongue and cheek tone can work, it’s just a really bad idea.