"Overall, the SIP Phone product is a very innovative products. I had
personally test on it with another IP Phone is at another locations. The
voice quality was very good and clear just like the normal house phone.
But, the setup for this SIP Phone is not a easy job. Fortunately, Ovislink
had send me the setup guide for the easy of install and setup. However,
the MSRP of each Ovislink SIP Phone is at $120 USD. Remember, you will
need atleast two units of the SIP Phone in order for the live
conversation. For a long term usage, the IP Phone will save a lot for your