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Home Routing
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Home Routing
Home routing is a technology deployed by some mobile network operators in the SMS reception process. 

Traditionally, when an SMS is sent by an individual or organisation, the message travels direct from the SMS-Centre (SMS-C) of the sending party's operator through to the handset of the recipient.  This means that the sending operator retains control and visibility of the message right up until the point of receipt.

Under home routing this process is changed so that the message travels from the sending operator and is routed via the the recipient's own (home) network. Once received by the home network, the message is then forwarded onto the final recipient.

This process allows the receiving operator to add value in the SMS reception process.  For example, they can offer spam filtering, archiving of messages, re-direction to email or a host of other services that would have been impossible under the traditional structure where they never got sight of messages received by their subscribers.

Despite the benefits of adding value to SMS, the changed process in SMS delivery compromises the reliability of text messaging, because home mobile operators can block incoming messages more easily with this system.