Using Soho66 and a free android app (CSipSimple) I have a very memorable second phone line direct to my mobile. I can schedule when to direct calls to voicemail (e.g. evenings and weekends) and receive voicemails as audio file attachments by email. The options are limitless. Affordable, simple to set up and so far the service has been faultless. I highly recommend them.
To reply as a company, please log in to your business account.