1. A measurement cell for an arrangement for the analysis of liquids, comprising, integrated into a single cell:
at least one inlet and at least one outlet for the analyte liquid,
a gas volume for the absorption of gas bubbles present inside the analyte liquid, said gas volume being located within said single cell and sealed from the environment,
at least one micromechanical cantilever, which is at least partially located inside the measurement cell and is at least partially in contact with the analyte liquid.
2. The measurement cell according to claim 1, wherein the sealed gas volume is a multiple of the liquid volume inside the measurement cell, particularly at least a 10 times multiple.
3. The measurement cell according to claim 1, wherein the inlet and the outlet are located below the liquid level, and the gas volume is located above the liquid level.
4. The measurement cell according to claim 1, wherein the at least one micromechanical cantilever is inserted into the measurement cell from the top of the measurement cell so that at least a part of said cantilever is in direct contact with the analyte liquid.
5. The measurement cell according to claim 1, further comprising a holder to which the at least one micromechanical cantilever is fixed, said cantilever and its holder being removable from said measurement cell andor exchangable.
6. The measurement cell according to claim 4, wherein the at least one micromechanical cantilever andor a holder of said micromechanical cantilever seal the measurement chamber from the environment.
7. The measurement cell according to claim 1, further comprising means for detecting the movement of the at least one micromechanical cantilever, this detection being at least one of optical, interferometric, piezo-resistive or piezo-electrical.
8. The measurement cell according to claim 7, further comprising
a first light or laser beam for detecting a deflection or a movement of the at least one micromechanical cantilever, and
a second light or laser beam for determining a refractive index of the analyte liquid, said second light or laser beam being equal or similar to said first light or laser beam.
9. The measurement cell according to claim 8, wherein the second light or laser beam is deflected by the cantilever support or by an additional, rigid cantilever.
10. The measurement cell according to claim 1, further comprising means for temperature-controlling said measurement cell andor the inlet tube.
11. The measurement cell according to claim 1, further comprising means for transporting the liquid through the measurement cell connected to said measurement cell.
12. The measurement cell according to claim 5, further comprising means for exciting oscillations of the cantilever, particularly a piezo element, said exciting means being fixed to the holder.
13. The measurement cell according to claim 12, wherein a first volume within said measurement cell, said first volume containing the at least one cantilever is sealed, preferably air-tight sealed, by a flexible membrane from a second volume containing the means for exciting oscillations.
14. The measurement cell according to claim 1, wherein the at least one cantilever is adjustable individually, in groups or together inside the measurement cell.
15. A method for analysing liquids inside a measurement cell containing at least one micromechanical cantilever, comprising the following steps:
an analyte liquid being transported into said measurement cell through at least one inlet located below a liquid level inside the measurement cell,
air bubbles within said liquid being adsorbed by a closed gas volume inside said measurement cell, said closed gas volume being situated above said liquid level and being sealed from an environment, and
said liquid being transported out of said measurement cell through at least one outlet, said outlet being located below the liquid level.
16. The analysing method according to claim 15, whereby the at least one cantilever is at least partly immersed into the liquid from above.
17. The analysing method according to claim 15, wherein the analyte liquid is transported into the measurement cell and the transport stopped for a measurement.
18. The analysing method according to claim 15, wherein the analyte liquid is transported through the measurement cell at an approximately constant flow rate or constant speed during the measurement.
19. The analysing method according to claim 15, wherein the analyte liquid is sucked through the measurement cell, preferably by a pump situated at the outlet of said measurement cell.
20. The analysing method according to claims 15, wherein the analyte liquid is heated before andor inside the measurement cell in order to raise the diffusion speed of the gas bubbles.
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 method comprising:
a) receiving a first message indicating a call is being established from a first terminal;
b) sending a second message to establish the call with a second terminal;
c) sending a third message to provide information to establish a media session associated with the call, wherein the third message is sent over a packet network; and
d) determining a state of at least one of the first and second terminals based on the call and providing presence information to a media client associated with one of the first and second terminals based on the state of the at least one of the first and second terminals.
2. The method of claim 1,
wherein the second message is sent to a signaling adaptor, which forwards a connect message to a telephony switch supporting the second terminal in response to the second message.
3. The method of claim 1 wherein the second message is a session initiation protocol message and the connect message is an intelligent network protocol message.
4. The method of claim 1 further comprising determining to route the call to the second terminal based on call routing logic defined by a user associated with the second terminal.
5. The method of claim 4 wherein the first message indicates the call is intended for the second terminal.
6. The method of claim 4 wherein the first message indicates the call is intended for a third terminal.
7. The method of claim 1 wherein the third message is directed to a media client associated with the second terminal such that the media session can be established with the media client.
8. The method of claim 1 wherein the third message is directed to a media client associated with the first terminal such that the media session can be established with the media client.
9. The method of claim 8 wherein the first terminal and the media client are integrated on one communication device.
10. The method of claim 1 wherein the media session is automatically initiated.
11. The method of claim 1 wherein the media session is manually initiated.
12. The method of claim 1 wherein the third message is directed to a first media client associated with the first terminal and further comprising sending a fourth message to provide information to establish the media session to a second media client associated with the second terminal, such that the media session can be established between the first media client and the second media client.
13. The method of claim 1 further comprising sending call log information to a media client associated with at least one of the first and second terminals.
14. The method of claim 1 wherein the call is established at least in part over a public switched telephone network.
15. The method of claim 1 wherein the call is established at least in part over the packet network.
16. The method of claim 1 wherein the first terminal is associated with a first media client and the second terminal is associated with a second media client, the method further comprising receiving a session initiation message from one of the first and second media clients and sending a proxied session initiation message to another of the first and second media clients to initiate the media session.
17. The method of claim 1 further comprising
a) receiving a fourth message indicating the call is ending; and
b) sending a fifth message to a media client associated with one of the first and second terminals to end the media session.
18. A system comprising:
a) at least one communication interface; and
b) a control system associated with the at least one communication interface and adapted to:
i) receive a first message indicating a call is being established from a first terminal;
ii) send a second message to establish the call with a second terminal; and
iii) send a third message to provide information to establish a media session associated with the call, wherein the third message is sent over a packet network; and
iv) determine to route the call to the second terminal based on call routing logic defined by a user associated with the second terminal,
wherein the second message is sent to a signaling adaptor, which forwards a connect message to a telephony switch supporting the second terminal in response to the second message.
19. The system of claim 18 wherein the first message is received from the signaling adaptor, which sent the first message in response to an origination message from the telephony switch supporting the first terminal.
20. The system of claim 19 wherein the first message is a session initiation protocol message and the origination message is an intelligent network protocol message.
21. The system of claim 18 wherein the second message is a session initiation protocol message and the connect message is an intelligent network protocol message.
22. The system of claim 18 wherein the first message indicates the call is intended for the second terminal.
23. The system of claim 18 wherein the first message indicates the call is intended for a third terminal.
24. The system of claim 18 wherein the media session is automatically initiated.
25. The system of claim 18 wherein the media session is manually initiated.
26. The system of claim 18 wherein the third message is directed to a media client associated with the second terminal such that the media session can be established with the media client.
27. The system of claim 18 wherein the third message is directed to a media client associated with the first terminal such that the media session can be established with the media client.
28. The system of claim 27 wherein the first terminal and the media client are integrated on one communication device.
29. The system of claim 18 wherein the third message is directed to a first media client associated with the first terminal and the control system is further adapted to send a fourth message to provide information to establish the media session to a second media client associated with the second terminal, such that the media session can be established between the first media client and the second media client.
30. The system of claim 18 wherein the control system is further adapted to send call log information to a media client associated with at least one of the first and second terminals.
31. The system of claim 18 wherein the call is established at least in part over a public switched telephone network.
32. The system of claim 18 wherein the call is established at least in part over the packet network.
33. A system comprising:
a) at least one communication interface; and
b) a control system associated with the at least one communication interface and adapted to:
i) receive a first message indicating a call is being established from a first terminal;
ii) send a second message to establish the call with a second terminal;
iii) send a third message to provide information to establish a media session associated with the call, wherein the third message is sent over a packet network; and
iv) determine a state of at least one of the first and second terminals based on the call and provide presence information to a media client associated with one of the first and second terminals based on the state of the at least one of the first and second terminals.
34. The system of claim 18 wherein the first terminal is associated with a first media client and the second terminal is associated with a second media client, and the control system is further adapted to receive a session initiation message from one of the first and second media clients and send a proxied session initiation message to another of the first and second media clients to initiate the media session.
35. The system of claim 18 wherein the control system is further adapted to:
a) receive a fourth message indicating the call is ending; and
b) send a fifth message to a media client associated with one of the first and second terminals to end the media session.