There also were fears raised that IPX could drive away IDD traffic. Stuart Thornton, iBasis Asia-Pacific sales director, said the move from a transaction-based model to a services-based model was a "great concept, but faced a number of difficulties in commercial areas."
Trying to outline its objective, John Wick from Syniverse Technologies simply said: "IPX is an attempt to revolutionize voice interconnect, but we're not there yet."
He said he's seen more activity in the last 18 months than in the previous seven to eight years.
Eric Masseboeuf from Orange Wholesale said the increased interest is being driven by operators now having more IP at the core and as well as new apps, such as HD voice.
He says operators see it as a way to prepare for all IP networks and avoid competition from the over-the-top (OTT) players in the future.
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