| 摘要 |
The method involves initiating a call from a telecommunications device to a desired number in an intelligent sub-network, sending data with call information, especially the sender's number, from a service switching point to a service control center, analyzing to determine if an intelligent sub-network is to be used, if so initiating a callback to the calling device using the received telephone number, initiating a callback to the desired number. The method involves initiating a call from a telecommunications device (23) to a desired call number in an intelligent sub-network (22), sending first data with call information, especially the sender's telephone number, from a service switching point (26) to a service control center (29), analyzing the data to determine whether an intelligent sub-network is to be used, if so initiating a call-back to the telecommunications device taking into account the received telephone number and initiating a callback to the desired call number (25).
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