摘要:
A method of retrieving an address of a previously unknown resource based on the location of the invoking user by consulting a known resource is provided. A user terminal, while roaming, may select an optimal gateway for providing multimedia communications to the terminal by first sending a service request to the terminal's home gateway. In response, the home gateway determines the optimal gateway for use by the user based on the location of the invoking user. The address of the optimal gateway, as determined by the home gateway, is sent to the invoking user terminal, wherein the user sends a service request to the optimal gateway.
摘要:
There are voice signals from at least two voice sources which are multiplexed by an ATM Adaptation Layer 2 multiplexer (AAL2 MUX) into the same ATM connection after having been processed by a packetizing means such that the AAL2 MUX is presented with assembled AAL2 packets of a suitable periodicity. If the voice data signals are to be compressed, the packetizing means comprises an encoder of a suitable voice codec, e.g. ADPCM, GSM, LD-CELP or CS-ACELP. The voice encoders may also include means for silence removal. The packetizing means further comprises a packetizer, either separated from the voice encoder, or as a part thereof. The packet releases from the packetizing means are synchronized to occur virtually simultaneously. In this way, the released packets from the packetizing means arrive almost simultaneously at the AAL2 MUX, with the result that an ATM cell may be filled with AAL2 packets well before the expiration of the timer Timer-CU of the AAL2 MUX.
摘要:
Narrowband based telephony services and associated value added services are provided transparently in a network providing ATM switching and no STM switching is required in an ATM network (625) to which units (601, 603) requiring such services are connected. This is obtained by means of, when a call enters the ATM network (625), first finding the output port (619) from the ATM network (625), then returning the address of that port to the entry port (617) and thereafter ATM switch the connection directly through the ATM network (625). Hereby bandwidth resources are more efficiently used since all switching is done by ATM regardless of application. Heavy investments in providing intelligent services support by existing systems can be reused in an efficient way and thus reduce time to market for the introduction of the value added services.
摘要:
The present invention relates to multimedia communication between end systems in IP environments and more particularly it relates to the problem that all services concerning processing of media streams are bundled. The solution, according to the invention is a communications system in which a service is publicly available by any end system via a published Uniform Resource Identifier (URI),
摘要:
A method (30) performed in a client device (16) is provided for managing constrained devices (14a, 14b, 14c), which to at least some extent fail to support a Lightweight Machine to Machine, LWM2M, protocol. The client device (16) is compatible with a LWM2Mprotocol for communicating with a LWM2M server (17) and comprises a LWM2Mcontroller object (22) for management of any discovered constrained device (14a, 14b, 14c). The method (30) comprises discovering (31) one or more constrained devices (14a, 14b, 14c); creating (32), for each discovered constrained device (14a, 4b, 14c), a respective LWM2M connected device object (23), wherein the LWM2M controller object (22) points at the one or more created LWM2Mconnected device 10 objects (23); and exposing (33) the LWM2M controller object (22) to the LWM2M server (17). A method (40) in a server device (17), client device (16), server device (17), computer programs and computer program products are also provided.
摘要:
The present invention relates to multimedia communication between end systems in IP environments and more particularly it relates to the problem that all services concerning processing of media streams are bundled. The solution, according to the invention is a communications system in which a service is publicly available by any end system via a published Uniform Resource Identifier (URI),
摘要:
The invention is concerned with a method in a communication network for invoking services, the communication network comprising at least one or more terminals and at least two service entities. In the method the terminal deduces necessary support and service components for providing an end-user service. A set of configuration requests is constructed at the terminal, each associated with one or more specific service entities for invoking individual service components composing a service. Each configuration request is forwarded from the terminal to the service entity/entities indirectly, by using a special network support function for configuring service entities - the assembler unit of the invention - or directly in a way, which is chosen in accordance with pre-defined criteria. The invention is also concerned with a communication network, a terminal and an assembler unit to perform the method.