TABLE OF CONTENTS What was that snaky-headed Gorgon shield
That wise Minerva wore unconquered virgin,
Where with she freezed her foes to congealed stone?
But rigid looks of chaste austerity,
And noble grace, that dashed brute violence
With sudden adoration and blank awe.
Milton
We saw in Chapter 6 how a third-party SMS interworking network may send SMS to other networks. The third party needs to get the revenues from as many senders as providers, especially if it pays for the SMS-MT termination. So it needs to connect quickly, using the standard procedures of their SMSCs, as many mobile operators as possible and charge them for the SMS-MO sent by their subscribers.
It is very important to have the mobile operators as customers. They have a stable business structure (unlike application service providers), regular revenues, and stable administrative structures. This chapter explains how to connect the SMSCs of mobile operators so that they can use a third party to transmit their SMS to other networks with which they are not able to interwork (Figure 7.1). The chapter is divided into three parts: (1) the virtual HLR/MSC approach, (2) a discussion of how to route SMS traffic to a third party (the setup of the SMSC or the GMSC), and (3) how to create SCCP routing for SMS between the SMSC of the mobile operator and the third party when a GT translation is not available in the SMSC or...
