"If you value coming to practice that much, that should be why you're there, not to do your homework or return calls," Triano said Tuesday on the first day of Raptors training camp. "I understand Bryan (Colangelo) and some of the management might have a call, and all I've asked is that if you get one, excuse yourself and take it somewhere else."

Triano, who's making his training camp debut as head coach, has banned the use of smartphones and laptops during practice this season. A user can discreetly read an incoming message, but must leave the gym to respond. That includes reporters, who only are allowed to see a portion of practice as it is.

"I want my two hours on the floor with these players to be valued, and if you have something else to do, then don't come to our practice," Triano said. "I don't want it to be a distraction. I don't want them looking over their shoulder wondering, who could that guy possibly be talking to? I want them focused on what we're here for, I want them to feel valued and I want the people coming in to feel of value in being able to come in here."

Triano's rule comes as the NBA learns to adjust to the growing presence of social media networks such as Twitter and Facebook. The Miami Heat, for example, have banned the use of social networking at the arena, either at home or on the road.

The league is expected to announce its social network guidelines shortly, but they're not expected to be as stringent as those of the NFL, which has banned players from using social media platforms such as Twitter and Facebook from 90 minutes before kickoff through the end of the postgame media interviews.

Chris Bosh is among a handful of Raptors who are regular "tweeters." Triano doesn't have a problem with Twitter, as long as players tweet on their own time.

As for the BlackBerry ban, the quick-drawing Colangelo said he'll adjust.

"I've got (my BlackBerry) here," he said, patting his pocket. "I guess the rule is I can check but if I need to respond, like anybody else I've got to get out.