| 摘要 |
In order to identify a teleservice during the setting up of a connection in a telephone network (PSTN) from a calling point (TXA) to a target subscriber (TNB), a signal recognition device (22) is temporarily applied to the requested connection on the basis of the call request (20) in a switching center of the network, preferably in a target switching center (VSB) associated with the target subscriber, said signal recognition device being sufficient at least for emitting a service call signal indicating a teleservice, via the calling point (TXA). When a service call signal is received (23) by the signal recognition device, said signal is evaluated in terms of the service indicated, and the connection (24-26) is further treated according to the service thus indicated. For the recognition of a teleservice when establishing a call in a telephone network from a calling party to a target subscriber, on the basis of the call request, in an exchange of the network, preferably a target exchange assigned to the target subscriber, a signal identifier is temporarily applied to the requested call, for a duration that is at least sufficient for the calling party to send out a service call signal that indicates a teleservice. If a service call signal was received by the signal identification, this signal is evaluated with regard to the indicated service, and further handling of the call is carried out as a function of the service indicated in this manner. For the recognition of a teleservice when establishing a call in a telephone network (PSTN) from a calling party (TXA) to a target subscriber (TNB), on the basis of the call request (20), in an exchange of the network, preferably a target exchange (VSB) assigned to the target subscriber, a signal identifier (22) is temporarily applied to the requested call, for a duration that is at least sufficient for the calling party (TXA) to send out a service call signal that indicates a teleservice. If a service call signal was received by the signal identification (23), this signal is evaluated with regard to the indicated service, and further handling of the call (24-26) is carried out as a function of the service indicated in this manner.
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