contains the services (and hence controls the progression of a call) is known as service control point (SCP).

Example of a 0800 number translation service

In the UK 08XXX numbers are non-geographic numbers - that is, the number does not refer to a telephone number in any particular region of the UK. To route a call to such an 08XXX number, the number must be translated into a geographic number (e.g. 0121 XXX XXXX for Birmingham numbers).

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