We use RingCentral for our phones, extensions, voicemail, fax, click-to-call, 800 number, and more and we only pay $60 per month! That is less than the cost of 2 phone lines from the phone company. Not only that our calls can redirect to our cell phones when we want and we can make and receive calls from our computers!
They have a lot going on! Try them out...
If you need assistance setting up your phones, you can pay us to set stuff up and integrate.