Agile communication is quicker than traditional software development communication in the following ways:

First, the project teams are "co-located" so that any questions are immediately answered instead of using phones,

email, etc to ask coworkers for ideas, thoughts or answers. Every day an Agile team meets for a quick 15 minute meeting

(sometimes called a daily scrum) to refine what tasks were completed the previous day, what will be done by the team

today and what impediments are prohibiting the team from getting the work done.

Agile teams are constantly refining scope based on empirical data from previous releases, test results and discoveries

where traditional projects design and code up to the delivery date only to discover problems when it's very expensive to correct.