Length – if your callers typically wait 2 minutes at a time, then at least 2 minutes of programming should be the goal. The idea is to ensure the callers don’t hear repeated messages every time they call. A typical on-hold message is 4-8 minutes in length.
There’s a reason this is standard. It starts the conversation off well and pleasantly, and it conveys to the customer that you appreciate them taking the effort to reach out to them. Even though it’s standard courtesy, it still leaves a better impression than a greeting that starts with “You’ve reached our phone line.”

Solution: Make it easier for callers to reach a real person. For example, if you have multiple phone lines, Spectrum Business Voice offers you the option of setting up an auto-attendant that answers your business phone and provides callers with a menu of options—such as particular employees or departments. This way, callers are more likely to reach the people who can help them. A hunt group is another voicemail feature: If one employee does not answer their phone, it redirects calls to another phone line in your business and can keep trying all the lines you have. It will only direct calls to voicemail if no one answers their line.
In order to create unique greetings for your customers, first you have to have a couple call tracking phone numbers. These will allow you to track where your customers are finding you and how they are hearing about you. In addition, you will get the option to record a different call greeting for each phone number you own, even though all of the calls forward to one place.