Ericsson’s joint venture with operators and API aggregator platform Aduna is being run on a cost basis, which means that it will not turn a profit. This is a promising way to bring more operators onto the platform and strengthen Ericsson’s relationships with its customers. But this is still an awkward turn of events for Ericsson’s Vonage API unit, which intended to play a similar role but has failed to turn a profit. The Chief Commercial Officer of Aduna, Peter Arbitter, is so optimistic about the future of his business segment that he walked onstage at Ericsson’s recent OSS/BSS conference in London wearing a t-shirt that read “#bullish.” The room was crowded with operators, so Aduna could not miss the…