If your clients can't reach you, the will eventually get upset, and that is the last thing you want. You need to do something about it. Well, maybe not all the time, but I'll explain ways to make your business handle your clients while you are not physically at your home. Remember - the key to success in business is communication. Disruption of communication means only one thing - problems.
Technology offers a lot of options.
In many instances, a combination of pager and a mobile phone is a good idea. The important feature is to have a silent alert that someone is trying to reach you. It is not a good idea to have a phone ringing during an important business meeting, or when driving car at rush hour. The pager has the additional advantage that you don't have to answer the call immediately. Additionally, a pager is cheaper than the cost of a mobile phone.