Yesterday Cisco announced that it is suing Apple over the use of the iPhone trademark.

“Cisco entered into negotiations with Apple in good faith after Apple repeatedly asked permission to use Cisco’s iPhone name,” said Mark Chandler, senior vice president and general counsel, Cisco. “There is no doubt that Apple’s new phone is very exciting, but they should not be using our trademark without our permission.”

Apple spokesman Steve Dowling called the Cisco lawsuit “silly,” adding there are several companies using the term iPhone for VOIP products, and Cisco’s trademark is “tenuous at best.” “We’re the first company to ever use the iPhone name for a cellphone,” he said. “If Cisco wants to challenge us on it, we’re very confident we’ll prevail.”