Nokia Corporation

Other

Nokia Networks Oy

Jari Eikkula

Heikki Tuunanen

Jukka Wallenius

Erkki Ojala

Harri Ylieskola

Service reference information is added to an IP telephony signaling protocol message and the IP telephony signaling protocol message is then sent to the network node in order to provide a network node using the IP telephony signaling protocol, e.g., SIP, with service reference information needed for billing purposes.

Providing a network node with service reference information

The present invention relates to a method and a network element in a telecommunications system. The telecommunications system comprises at least two telecommunications networks and means for providing number portability service between the networks and also supplementary telecommunications services. The method comprises the steps of initiating a set-up procedure for communications between two stations, sending an enquiry to the number portability service, determining if the called station is a ported station, and informing the supplementary telecommunications service of the results of said determination before initiating an use of said supplementary telecommunications service.

Number portability service in a telecommunication system

The invention relates to a communications network, including switching centers having no echo canceling equipment and switching centers having echo canceling equipment. The switching centers are capable of changing the call party or the call during the call. The switching center which controls the change of call party or call type is arranged to command the nearest switching center having the echo canceling capability to connect/disconnect an echo canceling equipment to/from the connection. In other words, in these special situations the echo cancellation is controlled by a new signaling feature within the communications network.

Control of echo cancellers in a telecommunication system

A method and arrangement for charging a telecommunication network subscriber by means of an intelligent network (IN), the arrangement comprising at least one IN service switching point () and at least one IN service control point () and being arranged to route a call of a subscriber () from an originating switching point () or a transfer point to a particular service switching point () for producing an IN service, to send an enquiry from the service switching point () to the service control point () in response to call routing to the service switching point (), to send instructions from the service control point () to the service switching point () for carrying out the subscriber () charging in response to the enquiry received by the the service control point (), said instructions comprising information whether subscriber charging is to be performed by the service switching point.

Charging control of telecommunication network subscriber

A method and intelligent network service switching point for transferring the execution of IN service related functionality from the originating half-call to the terminating half-call. For the functionality to be transferred, the service of a portion thereof is determined as a transferable service in the originating half-call. When the transferable service is encountered, information thereon is sent to the terminating half-call in which the is triggered.

Call control in intelligent network

Services controlling the same call state model are independent of each other and do not necessarily have any knowledge of each other. To make the facilities of these parallel controlling services interoperable, at least one parameter is defined, whose value indicates whether a controlling service may be initiated to control a control record, if a controlling service has already been initiated. When detecting ( ) a situation triggering the initiation of a second controlling service in the control record controlling call set-up, the initiation of the second controlling service is continued ( ), if the parameter allows the initiation of the controlling service.

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Espoo, Finland

Jari Eikkula