iPhone customers can now use VoIP services over AT&T’s 3G network–not just over WiFi. That’s the ruling today from AT&T (NYSE:T), which has been dealing with regulatory and cosumer fallout from banning iPhone versions of Skype and other VoIP applications from its high-speed packet access (HSPA) network, even though it has allowed such 3G access on other devices. more

Ciena (NASDAQ:CIEN) is getting closer to what analysts say would be a “transformative” acquisition for a company with a long history of bold M&A. The equipment vendor now appears to be the front-runner to acquire Nortel Networks’ optical and carrier Ethernet business, analysts say, having announced being in negotiations yesterday.

[UPDATE 10/7/09: Ciena bids $521M.]

According to Seeking Alpha, Ciena issued a press release on Friday that put the company’s bid for Nortel’s assets at about $550 million ($400M in cash and about $150M in stock — 10M shares). The company won’t comment on that, and the release itself is no longer visible. Ciena’s announcement yesterday didn’t mention specific prices. more