My magicjack does not work well about every time I use it. The usual answer of a "live agent" is to download the upgrade (every day?). Recently an upgrade of the Magicjack service was made, which is taking away the possibility to participate in a conference call. In short, extremely unreliable and the service is being cut down. A reason or me to have the magicjack was to participate in hour long conference calls. read full review »