docs: public String formatted()
      {
          String callerID = ""; //$NON-NLS-1$
          if (this.name != null)
          {
              callerID += this.name;
          }
          if (this.number != null)
          {
              if (callerID.length() > 1)
              {
                  callerID += " "; //$NON-NLS-1$
              }
              callerID += "<" + this.number + ">"; //$NON-NLS-1$ //$NON-NLS-2$
          }
          return callerID;
      }