if you have hi-speed wireless internet... try Skype... if you plan on staying in the office.
Also try skype, if you want sexy”grrl”, or luvkitten to call or chat you up at random. I had a skype number, I used when I was overseas, to call my wife. I was so glad she never saw the call history (even though I always ignored them); I would have never heard the end of it.
I have AT&T DSL but may go to Comcast cable Internet.
Does SkyPe have an incoming phone number people can call? I may keep one regular phone line with AT&T or Comcast.
Skype is excellent, and can also be used outside of the office, anywhere where a fast Internet connection is available. You can use either a computer or an 802.11 Skype phone.
BTW, I’m not associated with Skype, other than as a customer for the past 2 years. I’ve got their subscription for unlimited calls to anywhere in the US and Canada, along with a Skype-In number so landline phones can reach me. Around $70 per year for the whole thing.