Telstra Global's director of products and marketing, Nathan Bell, told ExchangeDaily that the IPX enabled mobile operators to break out roamers' Internet traffic from their own network rather than backhauling it across the world to the roamer's home network. "Without the IPX, if you have someone travelling to Hong Kong and accessing a local web site on their mobile that traffic gets tromboned all the way to their home network and back to Hong Kong. It's very inefficient."
Tejaswini Tilak, global head of carrier services at Telstra Global, added: "This is not just about providing the transport functionality to exchange data; is about providing a critical mobility management functionality which helps build a lot of scalability into roaming relationships because we can help facilitate the exchange of signalling traffic, ensuring that end users are always connected no matter where they are."
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The IPX also enables mobile operators to offer high profile customers and businesses end-to-end SLAs across multiple networks. Bell said that, at present, a business might get an SLA from one operator into a global roaming exchange (GRX), another from the GRX provider and one for the provider on the other side. "What we are doing is removing that and giving one SLA from home to the destination market.
A third function of the IPX is as platform for value-adding applications that mobile operators can tap into to offer applications to their end users, without having to make significant upfront investments.
"For operators trying to move beyond talk and text we are talking to application providers to host their application framework so a mobile operators could access those application on a trial basis or pay-as-you-use basis to give them much more flexibility and the opportunity to experiment with different application in different segments," Bell said.
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