1. (canceled)
2. A tangible machine-readable storage device comprising instructions that, when executed by a hardware processor of a machine, cause the machine to perform operations comprising:
sending a request, from a first communication device, to establish a first connection with a second communication device;
causing the first connection to be established over a data network based on the request;
in response to a quality of the first connection over the data network being low, causing a second connection to be established; and
shifting communication from the first connection to the second connection.
3. The tangible machine-readable storage device of claim 2, wherein the data network comprises a network for transporting packets.
4. The tangible machine-readable storage device of claim 2, wherein the operations further comprise monitoring the quality of the first connection over the data network.
5. The tangible machine-readable storage device of claim 2, wherein the causing the second connection to be established comprises causing the second connection to be established over a telecommunications network.
6. The tangible machine-readable storage device of claim 5, wherein the telecommunications network comprises a mobile network.
7. The tangible machine-readable storage device of claim 5, wherein the telecommunications network comprises a public switched telephone network.
8. The tangible machine-readable storage device of claim 2, wherein the causing the second connection to be established comprises causing the second connection to be established over a second data network.
9. The tangible machine-readable storage device of claim 2, wherein the operations further comprise:
transmitting high capacity data via the first connection over the data network; and
causing a third connection to be established over a telecommunications network to transmit low capacity data.
10. A method comprising:
sending a request, from a first communication device, to establish a first connection with a second communication device;
causing the first connection to be established over a data network based on the request;
in response to a quality of the first connection over the data network being low, causing a second connection to be established; and
shifting communication, using a hardware processor, from the first connection to the second connection.
11. The method of claim 10, wherein the data network comprises a network for transporting packets.
12. The method of claim 10, wherein the operations further comprise monitoring the quality of the first connection over the data network.
13. The method of claim 10, wherein the causing the second connection to be established comprises causing the second connection to be established over a telecommunications network.
14. The method of claim 10, wherein the telecommunications network comprises a mobile network.
15. The method of claim 10, wherein the telecommunications network comprises a public switched telephone network.
16. The method of claim 10, wherein the causing the second connection to be established comprises causing the second connection to be established over a second data network.
17. The method of claim 10, further comprising:
transmitting high capacity data via the first connection over the data network; and
causing a third connection to be established over a telecommunications network to transmit low capacity data.
18. A system comprising:
a device having a hardware processor, the device to:
send a request, from a first communication device, to establish a first connection with a second communication device;
cause the first connection to be established over a data network based on the request;
in response to a quality of the first connection over the data network being low, cause a second connection to be established; and
shift communication, using the hardware processor, from the first connection to the second connection.
19. The system of claim 18, wherein the device is further to monitor the quality of the first connection over the data network.
20. The system of claim 18, wherein the second connection to be established is over a telecommunications network.
21. The system of claim 18, wherein the second connection to be established is over a second data network.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A fluid control device, comprising:
a main body block having a passage channel formed in a surface thereof, the main body block being of a corrosion resistant resin material,
a thermal conducting plate that is provided on the surface of the main body block, and covers the passage channel to form a passage for passing a corrosive fluid to be temperature controlled, the thermal conducting plate being made of metal with a high thermal conductivity; and
temperature control means that carries out heat exchanging, by way of the thermal conducting plate, with the corrosive fluid passing through the passage,
wherein
an anti-corrosion plate is fixedly provided on a surface of the thermal conducting plate facing the main body block, the anti-corrosion plate being resistant to the corrosive fluid and having a high thermal conductivity,
the thermal conducting plate being connected to the surface of the main body block via the anti-corrosion plate, and
the passage abutting on the thermal conducting plate connects a fluid inlet and a fluid outlet formed in the main body block, and is a single passage having an approximately constant passage cross-sectional area over its entire length and having a spiral shape.
2. The fluid control device according to claim 1, wherein
A drain passage that communicates adjacent passages is formed in a wall provided between adjacent passage channels in the main body block.