What are the bandwidth requirements for the i-box service?
The i-box phone service uses advanced compression technology that is based on G.729.(A), the international voice compression standard. Many factors associated with your broadband connection including delay, packet loss and bandwidth can affect audio quality. Generally, the best results are obtained with upstream and downstream bandwidths of greater that 128 kb/s in both directions. IP Telephony service can be obtained below 128 kb/s but audio quality may be adversely affected.