While email and text support saw an increase in recent years, many customers, partners, and potential hires still prefer to call your company directly. When writing your voicemail script, include basic information such as a short greeting, your company name, an invitation to leave a short message, and the time frame in which the caller can expect a return call. If relevant, you may want to include your office hours, extensions for company departments, and the contact information for your office manager or HR department.
These are legitimate questions and the answers will vary depending on your industry and individual prospects. In all honesty, your response rate with sales voicemails probably won't be high—the average response rate for a prospecting voicemail is between 4-6%, industry wide. You'll probably see more engagement using email. And leaving the perfect message takes planning and practice.

When you leave a voicemail message, be sure to identify yourself right away. Give your return phone number at the beginning of your message so that other people don't have to listen to you twice. Speak slowly and clearly. It helps to pretend to be writing your number in the air, which will slow you down and help with clarity. Say when you can be reached.
This is not an answering machine–this is a telepathic thought-recording device. After the tone, think about your name, your reason for calling, and a number where I can reach you, and I’ll think about returning your call.