The industry is developing a new standard called Selected IP Traffic Offload (SIPTO). SIPTO allows internet traffic to flow from the femtocell directly to the internet, bypassing the operator’s core network, as shown in Figure 8 below.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjOAu66su1tkMC8rzplP36BREp73df8xTvINd6DmCqNd7-Q742KL0oQVHaGo6CQ8aJKS1Fvu9Do5uJxbhrIpeoryt_IVxXB_EARllcEAoXN0Vc90KWaEI7V51gV5RJ_qAYU08scNX2blnI/s640/InternetAccess_SIPTO.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjOAu66su1tkMC8rzplP36BREp73df8xTvINd6DmCqNd7-Q742KL0oQVHaGo6CQ8aJKS1Fvu9Do5uJxbhrIpeoryt_IVxXB_EARllcEAoXN0Vc90KWaEI7V51gV5RJ_qAYU08scNX2blnI/s640/InternetAccess_SIPTO.jpg)
More information on LIPA and SIPTO can be obtained from:
1. 3GPP TR 23.829: Local IP Access and Selected IP Traffic Offload (http://www.3gpp1.eu/ftp/Specs/archive/23_series/23.829/)
2. Femtocells – Natural Solution for Offload (http://www.3gamericas.org/documents/016+Femtocells+Natural+Solution+for+Offload%5B1%5D.pdf)
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