One cool iOS feature is called Visual Voicemail. This is Apple’s attempt to make voicemail less annoying. Visual Voicemail allows you to see a transcription of the voicemail the caller left. This transcription allows you to read their voicemail as if it were a text message.
Twilio is a low-cost cloud service that provides APIs that add communication services to applications. We bought our phone number, which costs $1.00 per month, even if we don’t use for any calls or messages. Twilio charges $0.085 a minute for incoming calls and $0.013 a minute for outgoing calls. Sending or receiving a text message from our Twilio number costs $0.0075, while recording a voicemail is only $0.0025. Even if we receive 100 messages a month, the cost of those, plus the phone number, is only two or three dollars. To increase the security of this task, it might be a good idea to consider a proxy server from companies similar to fineproxy. The last thing you’d want is to get hacked! But I digress.

A professional voicemail greeting will give your customers a welcome that is friendly and polished. Our talented community of freelance voiceover artists will leave your callers confident that their call is important to you.
Go under the [Reseller System Configuration] Tab, and on the section "Type of configuration" select: [Package Configuration], 1) To add a new voicemail for your client, or to help your client adding one. Go under the [Services] at the left navigation bar, then on [Voicemail]. .