I have no idea if I’ve dialed the right number or if I’m about to leave a message for Kim Jong-il (why wouldn’t Kim Jong-il have a cellphone with a Lancaster County, PA area code?). If I’m killed tonight by snipers from North Korea, this is all your fault.
Users often don’t invest enough time into their messages, resulting in incomplete, unprofessional, or otherwise under-whelming greetings. Sure, crafting a greeting doesn’t sound all that complicated; however, there are a number of pitfalls users can fall into—i.e. informality, terseness, sincerity, lack of direction, and more. While none of these sound too catastrophic, they are often interrelated. As such, they tend to worsen any problem. For example, humor can cause informality, worsen ambiguity, and weaken sincerity. That being said, users should strive to avoid ALL these pitfalls.

To set up voice mail, tap the Phone icon, tap the Voicemail icon and then "Greeting.". There are two options available: Default and Custom. If voice mail hasn't been set up previously on your phone, Default is selected, which means people will hear your wireless carrier's generic voice mail greeting when they call you.
A voicemail greeting can be pivotal in attracting a potential customer to your company or repelling him! So, it may be worthwhile to utilize some tried and tested tips to frame voicemail greetings for your company. The first line must include a brief description of your company and the services it offers clearly. Tell the callers the time frame within which they will get a call from your end. Ensure the voice used in recording the greeting is cheerful and not drab one. Ensure the greeting is recorded not in a hurried manner so that the callers can understand each word without issues. Try keeping the voicemail message length to 20 seconds or so.