System, method and computer program for changing over between a voice transmission and a fax transmission
AssigneeSiemens Aktiengesellschaft
InventorsThomas Baumann, Karin Groetzner
Life of this patent
Estimating the term…
Abstract
To switch back a fax transmission in line with T.38 to a voice transmission over an IP network, the invention proposes transferring the transmission data stored in the media gateway controller at a first end to the media gateway controller at a second end over a signaling network. Thereby, causing the codecs in the media gateway at the second end and the media gateway at the first end to be switched back together.
Claims17
A method for changing over between a first transmission and a second transmission, each of which is set up over a packet network, comprising:
- setting up a first transmission between a first transmission station connecting a circuit network and the respective packet network and a second transmission station connecting the respective packet network and the circuit network;
- changing over the first transmission to a second transmission which is set up between the first transmission station and the second transmission station;
- and
- storing transmission data for the first transmission in at least one of the first and second transmission stations during the second transmission.
An apparatus for converting information streams between a packet network and a circuit network, comprising:
- a first transmission station connecting a circuit network and setting up a first transmission between the first transmission station and the respective packet network;
- and
- a second transmission station connecting the respective packet network and the circuit network, wherein
- the first transmission is changed over to a second transmission which is set up between the first transmission station and the second transmission station, and transmission data for the first transmission are stored in at least one of the first and second transmission stations during the second transmission.
A computer program product for operating a transmission station between a packet network and a circuit network, having a program on a recordable medium performing the following:
- setting up a first transmission between a first transmission station connecting a circuit network and the respective packet network and a second transmission station connecting the respective packet network and the circuit network;
- changing over the first transmission to a second transmission which is set up between the first transmission station and the second transmission station;
- and
- storing transmission data for the first transmission in at least one of the first and second transmission stations during the second transmission.
Dependencies are inferred from the claim text.