Google Voice is another tool that I currently use, and will be a great tool for my business. I originally signed up for this service a few years ago when it was first offered, because we had eliminated our land-line and I did not want to have to put down my actual phone number when it was required for entering contests etc. since I did not want solicitor calls coming in on my cellphone.
"Google Voice is probably the best kept secret in modern day Internet 'telephony' (the convergence of traditional voice and Internet technology) mainly because it can come across as complicated, but it's well worth exploring.
The best part is that unless you have very complicated needs, test-driving this free service is a no-brainer. The smaller the business, the more likely that Google Voice can provide value. If you are like most small businesses with limited resources, you can use Google Voice to never miss a call because it can ring all of your telephones (cell, home, work, etc.) at the same time. It's sort of like a free digital assistant that can track you down wherever you are."
When I signed up for Google Voice, I entered my area code, and then it listed several different phone numbers that I could choose from. While I have not explored all the many options that Google Voice offers, I do use it on my cell phone and I love it! This Google Voice number is the one that I plan on using for my advertising purposes, and will have it printed out on business cards. This way I do not have to pay for a business phone, nor do I have to worry about giving out my personal cell phone number. I can set the business calls up with a different ring tone, so I know right away when my phone rings, and can answer with a business greeting rather than 'hello'.
Since I had originally set this number up as a way to not give out my primary number, Google Voice gives me the option of changing my number (for a one time $10 fee) or adding a second number (for a one time $20 fee), but since I can log into my Google account and view the usage history on this account (bonus points for record keeping!) I see that I have only received a handful of calls to this number since I signed up for it, so I know it will be OK to keep this number active.
To read the rest of the very informative article quoted above, click on this link: http://www.abc15.com/dpp/money/consumer/data_doctor/what-is-google-voice-should-i-use-it#ixzz2SR9oQCO4