Optus latest plans for BlackBerry offer unlimited email from $9.99.

ANGRY customers have accused Optus of greedy behaviour after it cut off their access to cheap international mobile telephone calls on Christmas Eve.

Charles Wright looks at some options for cheap internet phone calls.

Linda Magee almost hit the floor when she opened a phone bill that had skyrocketed because of $75 in calls from her home phone to mobiles that month.

Optus has followed Telstra's lead and is raising the cost of mobile calls, with almost all of the company's 4.5 million customers facing larger bills under the new `Your Call' pricing plan, which starts Monday.