Patent ID: 8428235
Filing Date: 2013-04-23
Classification: H04M,H04Q

Abstract:
1. A method of providing an enhanced telephony service in a telecommunications network, the method comprising: maintaining a store of identifiers for enhanced telephony service users in the network; configuring a local telephone exchange switch to generate number portability queries for telephone calls received thereby; further configuring the local telephone exchange switch to alter a network address to where the local telephone exchange switch transmits number portability queries, the altered network address being associated with a number portability intercept node; receiving, at the number portability intercept node, a number portability query relating to a first telephone call in the network, the number portability query comprising a first identifier for the first telephone call, the number portability query being received from the configured local telephone exchange switch; searching the store for an identifier corresponding to the first identifier to identify a user of an enhanced telephony service; and in response to the searching identifying a user of an enhanced telephony service, instructing, at the number portability node, routing of the first telephone call to a first network node in the network responsible for the provision of a first enhanced telephony service, the first network node being different from the configured local telephone exchange switch and the number portability intercept node, and the first enhanced telephony service being a service other than a number portability service.