Application Example: SMS Offload Using IP

What is Short Message Service?

Short Message Service (SMS) is the transmission of short text messages, to and from a mobile phone, fax machine and/or IP address. SMS messages must be no longer than 160 alphanumeric characters and contain no images or graphics.

How does it work?

Once a message is sent, it is received by a Short Message Service Center (SMSC), which must then direct it to the appropriate mobile device. To do this, the SMSC sends a SMS request to the home location register (HLR) to find the roaming customer. Once the HLR receives the request, it will respond to the SMSC with the subscriber's status (either inactive or active) and the location for where the subscriber is roaming. The SMSC transfers the message in a Short Message Delivery Point to Point format to the serving system. The system pages the device, and if it responds, the message gets delivered. Recipients can then initiate a response message using the same process.

What products do we provide in this application?

SEGway™ Link Replacement Devices: A solution for offloading traffic or alternatively configuring SMS networks. It can be used as a full replacement or more practically, as an offload option to allow network planners to more effectively control SMS network growth.

Related products:

Enabling Software and Middleware: Our Channel7™ MTP-2 is used by the wireless equipment developer when building or developing an SMS server that is based on standard PCI hardware. Channel7 products can be used as the SS7 MTP-2 platform for system development.