AT&T has been a driving force behind the conversion of telco networks to white box platforms, and last week, at the ONF (Open Networking Foundation) Connect conference, it announced its latest milestone – large scale production testing of white box cells site gateway routers. The progress was discussed at the event by Andre Fuetsch, chair of the ONF, president of AT&T Labs and CTO. He said: “This is really exciting. This is a first for us. We believe in our community of operators it’s a first for the industry.” He believes the use of white boxes in this area of the network will be essential to keep the costs of backhauling increasingly dense 5G networks under control. The white box…