It’s a good practice for each of your team members to have their own personal business phone numbers. There are many reasons why they shouldn’t use their personal cell phone number for business, so you’ll want to give them their own phone number through your VoIP provider or phone system.
Apr 27, 2013 · If the caller needs to a have longer conversation, then they should schedule a meeting or a coffee and have the conversation face to face. Or plan a conference call. Let the phone ring at least 6 times (or until the jump to voicemail occurs). This gives the receiver time to put down what they are doing and come to the phone.

Personally, I think Samsung has one of the best ways of dealing with your voicemail. In addition to offering a quick and easy way of acessing your voicemail, Visual Voicemail will let you jump right into the message you want to listen without having to listen to each message until you get there.
Call recordings are forwarded to you via email and appear in Google Voice's list of voice mail recordings. You can generally tell the difference between voice mail messages and recorded conversations because the latter are probably longer, and say "Transcription not available."