ty port video will be many different media to support both voice required to sup- and devices, from and video. This port this dramatic desk phones, to PC change in the lowest change. Today's with Skype to cell common form of networks are on phones all having the communications from the cusp and are capability to send voice-only-to-voice, having more video audio. video, and data will traffic than any bring in a new social other, and the norm of what is con- future will be real- sidered a "basic call" ized when even the in both the business most basic devices and personal worlds. support video. The technology to accomplish this is the continued decline in cost and improvement in features for video- enabled endpoints. continues 306 SIP Trunking Table 13-1 Future UC Experiences and the Technology Changes Required to Enable Them (continued) Time Frame/Change Today Year 2050 Technologies Required Capability to initiate There are two major There will be a unique A new top-level connections from any unique identifiers that identifier that will be identifier for name device to any device people use for con- composed of some resolutions will necting across com- easy to remember tag, need to occur. This munications such as an email will likely be providers: email address, that will be based on Domain addresses and phone owned by the end Name System numbers. Other iden- users. This tag will (DNS), because it tifiers, such as an then be associated has proven to be iCHAT service screen with an IPv6 address scalable for finding name or SKYPE user- space that will enable services. The name can provide rich end users to have a expansion of DNS experiences, but myriad of devices to assist in the res- those identifiers are that can be connected olution of routing not owned by the with a few common information for individual and are not identifiers that they individuals does routable across have control over. not require any providers. technological changes but would require a change in the business mod- els for funding such service