Qwest Communications has begun offering a service level agreement (SLA) covering jitter across its network. Jitter measures the delay in streaming media and VoIP transmission over a broadband network. The less jitter the network has, the better the network performance and the customer's experience. Qwest guarantees that jitter levels will never exceed two milliseconds. Qwest is posting data online covering the real-time jitter levels on its network. http://stat.qwest.net/