| 摘要 |
The invention relates to a method, whereby a transmission path for the transmission of user data is established between two fax devices (FA, FB) on a multiplexing telecommunication network (12). A section of the transmission path, lying between two network gateway units (28, 42), is in a packet transmission network (10). The type of encoding and/or transmission protocol applied in the packet transmission network (10) is changed for the transmission of fax data. On performing the change at least one exchange (48, 50) on the switching network is affected. The establishment of a protocol for the exchange of signalling messages between control units (52, 54) for the control of the network gateway units (28, 42) is thus omitted.
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