Embodiments of the present invention include methods and arrangements to detect an end-to-end call on a AMR-WB capable network involving at least one monitored identity. According to an embodiment of the invention, call events related to the at least one monitored identity through at least one intercepting control element in a telecommunication network is monitored. A start notification message by the at least one intercepting control element is delivered whenever an AMR-WB codec is chosen in the telecommunication network as a selected codec for an end-to-end call between the at least one monitored identity and another identity,