Abstract:
In a method and a device for controlling the magnitude of the generated ring signal in a the Subscriber Line Interface Circuit (SLIC) the voltage of the A and B lines to the subscriber from the SLIC is compared to a reference voltage. The device is arranged to control the magnitude of the generated ring signal voltage in response to the outcome of the comparison. In particular, the device is arranged to control the ring signal voltage so that the ring signal voltage is reduced if the voltage on the A or B line exceeds the reference voltage. Also, the reference voltage is preferably chosen so that there is no risk for saturation of the final stages. The reference voltage is preferably selected to have a value being related to the value of the negative supply voltage.
Abstract:
The invention relates to a circuit arrangement for a combined supply voltage connection and call a.c. voltage generator and connection for analog telephone receiver stations in extension installations. The purpose is to make such a circuit arrangement as simply as possible with electronic components. This is attained in that two current paths are formed between earth and supply voltage potential which lead via the telephone receiver station and apply differing potential thereto if they are switched through by a control unit. In the inoperative position only one current path is switched through. In the call position, both current paths are alternately switched through at the call frequency or blocked. For use in analog telephone receiver stations in extension installations.
Abstract:
Disclosed are devices and methods for provisioning of voice and other CS-domain services. A first server (22) comprises a call reception block (221) configured to receive an incoming voice call, from a first user equipment; a transmitting block (222) configured to send, in response to the reception of the incoming voice call, a paging request to a second server; a service request reception block (223) configured to receive, from the second server, an SGs service request message, and; a trigger block (224) configured to use the SGs service request message as a trigger to send an indication of user alerting to the first user equipment when the SGs service request message indicates that a second user equipment was in Connected mode.
Abstract:
A method includes previously downloading, to a device of a user, media content chosen by a buddy of the user and an indication that it is to be associated with the buddy, passing the downloaded media content to the device as the media content to be associated in a contact list with the buddy and playing the media content in response to an identification of the buddy.
Abstract:
Disclosed are devices and methods for provisioning of voice and other CS-domain services. A first server (22) comprises a call reception block (221) configured to receive an incoming voice call, from a first user equipment; a transmitting block (222) configured to send, in response to the reception of the incoming voice call, a paging request to a second server; a service request reception block (223) configured to receive, from the second server, an SGs service request message, and; a trigger block (224) configured to use the SGs service request message as a trigger to send an indication of user alerting to the first user equipment when the SGs service request message indicates that a second user equipment was in Connected mode.