Abstract:
In telecommunication systems including a terminal and a speech recognizer for vocal commanding, an indication signal originating from the terminal is detected, e.g., a telephone number dialed or a key signal or a vocal signal, or originating from an application located in the terminal or elsewhere in the network and in dependence of the indication signal a capacity parameter for the vocal commanding is adjusted, whereby a flexible capacity parameter is created for adjusting the available bandwidth between terminal and speech recognizer and/or for adjusting a processor capacity of terminal and/or speech recognizer, e.g., a sampling rate or a noise reduction being deactivated, as a result of which name dialing, command and control, and dictation can be done with the highest efficiency.

Description:
BACKGROUND OF THE INVENTION 
   The invention relates to a telecommunication system comprising a terminal coupled to a network comprising a speech recognizer for vocal commanding. 
   Such a telecommunication system is known in the form of a telecommunication network for fixed and/or mobile communication, with said terminal being a fixed (PSTN, ISDN etc.) terminal (telephone, screenphone, pc etc.) or a wireless (cordless: DECT etc.) or a mobile (GSM, UMTS etc.) terminal (wireless handset etc.), and with said speech recognizer for vocal commanding being of common general knowledge and available on the market and being based upon a fixed capacity (with said vocal commanding taking place via a fixed bandwidth between source and destination and/or at a fixed sampling rate at source and/or destination—and/or with noise reduction being always switched on or off—and/or with a processor speed or available processing time at source and/or destination being fixed). 
   Such a telecommunication system is disadvantageous, inter alia, due to being inefficient. 
   BRIEF SUMMARY OF THE INVENTION 
   It is an object of the invention, inter alia, to provide a telecommunication system as described in the preamble, which is more efficient. 
   Thereto, the telecommunication system according to the invention is characterized in that said telecommunication system comprises a detector for detecting an indication signal and comprises an adjustor for in dependence of said indication signal adjusting a capacity parameter for said vocal commanding. 
   By introducing said detector and said adjustor, a flexible capacity parameter is created, which allows a flexible bandwidth between terminal and speech recognizer—and/or a variable sampling rate at terminal and/or speech recognizer—and/or a noise reduction being switched on/off in dependence of for example a signal quality—and/or with a processor speed or available processing time in terminal and/or speech recognizer being flexible. Said indication signal for example originates from said terminal and is for example in the form of a telephone number or a key signal or a vocal signal generated by a user or is for example in the form of an application signal originating from (a part of) an application running in said terminal. Or said indication signal for example originates from said network and is for example in the form of a further application signal originating from (a part of) an application running in said network. 
   The invention is based on the insight, inter alia, that the kind of vocal commanding is of influence to the necessary capacity (name dialling, command &amp; control, dictation etc.). 
   The invention solves the problem, inter alia, of increasing the efficiency of the telecommunication system. 
   A first embodiment of the telecommunication system according to the invention is characterized in that said adjustor in dependence of a network signal further adjusts said capacity parameter. 
   By making said adjustor not just dependent upon said indication signal but also dependent upon said network signal, the availability is taken into account when adjusting said capacity parameter, thereby avoiding that said system asks for more capacity than available and/or allowing said system getting more capacity than necessary in case of said capacity being available superfluously. 
   A second embodiment of the telecommunication system according to the invention is characterized in that said terminal comprises a preprocessing unit for preprocessing signals, with said network comprising a final processing unit for final processing said preprocessed signals. 
   By introducing distributed speech recognition, the efficiency of the system is further increased. 
   The invention further relates to a speech recognizer for use in a telecommunication system comprising a terminal coupled to a network comprising said speech recognizer for vocal commanding. 
   The speech recognizer according to the invention is characterized in that said telecommunication system comprises a detector for detecting an indication signal, with said speech recognizer comprising an adjustor for in dependence of said indication signal adjusting a capacity parameter for said vocal commanding. 
   A first embodiment of the speech recognizer according to the invention is characterized in that said adjustor in dependence of a network signal further adjusts said capacity parameter. 
   A second embodiment of the speech recognizer according to the invention is characterized in that said terminal comprises a preprocessing unit for preprocessing signals, with said speech recognizer comprising a final processing unit for final processing said preprocessed signals. 
   The invention also relates to a terminal for use in a telecommunication system comprising said terminal coupled to a network comprising a speech recognizer for vocal commanding. 
   The terminal according to the invention is characterized in that said telecommunication system comprises a detector for defecting an indication signal and comprises an adjustor for in dependence of said indication signal adjusting a capacity parameter for said vocal commanding. 
   A first embodiment of the terminal according to the invention is characterized in that said terminal comprises a man-machine-interface for receiving said indication signal. 
   A second embodiment of the terminal according to the invention is characterized in that said terminal comprises a preprocessing unit for preprocessing signals, with said network comprising a final processing unit for final processing said preprocessed signals. 
   The invention yet also relates to a method for use in a telecommunication system comprising a terminal coupled to a network comprising a speech recognizer for vocal commanding. 
   The method according to the invention is characterized in that said method comprises a first step of detecting an indication signal and a second step of in dependence of said indication signal adjusting a capacity parameter for said vocal commanding. 
   Embodiments of the method according to the invention are in correspondence with embodiments of the telecommunication system according to the invention. 
   The document U.S. Pat. No. 5,809,464 discloses a dictating mechanism based upon distributed speech recognition (DSR). Other documents being related to DSR are for example EP00440016.4 (corresponding to U.S. patent application filed Jan. 17, 2001) and EP00440057.8 (corresponding to U.S. patent application Ser. No. 09/789,808 filed Feb. 22, 2001). 
   The document EP00440087.5 (corresponding to U.S. patent application Ser. No. 09/791,562 filed Feb. 26, 2001) discloses a system for performing vocal commanding. Neither one of these documents discloses the telecommunication system according to the invention. All references including further references cited with respect to and/or inside said references are considered to be incorporated in this patent application 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
     The invention will be further explained at the hand of an embodiment described with respect to a drawing, whereby 
       FIG. 1  discloses a telecommunication system according to the invention comprising a speech recognizer according to the invention and a terminal according to the invention mutually coupled via a switch. 
   

   DETAILED DESCRIPTION OF THE INVENTION 
   Terminal  1  according to the invention as shown in  FIG. 1  comprises a processor  10  (comprising a memory not shown), a man-machine-interface  11  (mmi  11  like a display, keyboard, microphone, loudspeaker, etc.), a first unit  12 , a second unit  13  and a transceiver  14 . One side of transceiver  14  is coupled to an antennae and of an other side an output of transceiver  14  is coupled via a connection  15  to mmi  11  and unit  12  and an input of transceiver  14  is coupled via a connection  16  to mmi  11  and to unit  13  and a control in/output is coupled via a control connection to processor  10 . Processor  10  is further coupled via further control connections to mmi  11 , unit  12  and unit  13 . 
   Switch  3  as shown in  FIG. 1  comprises a processor  30 , a third unit  31 , a fourth unit  32 , a fifth unit  34 , a sixth unit  35  and a seventh unit  36 . Processor  30  is coupled via control connections to unit  31 , to unit  32  and to coupler  33 . Coupler  33  is coupled via a connection  40  to a base station  4  for mobile communication with terminal  1  and via a connection  42  to a base station  5  and via a connection  44  to unit  31  and via a connection  45  to unit  32  and via a connection  46  to speech recognizer  2  and via a connection  48  to unit  34  and via a connection  50  to unit  35  and via a connection  49  to unit  36 . 
   Speech recognizer  2  according to the invention as shown in  FIG. 1  comprises a processor  20 , a memory  21 , an eighth unit  22 , a nineth unit  23 , a tenth unit  24  and an eleventh unit  25 . Processor  20  is coupled via a control bus  27  to memory  21 , to unit  22 , to unit  23 , to unit  24  and to unit  25 , and is coupled via a control connection to memory  21 , and is coupled via a bus  26  to memory  21 , to unit  22 , to unit  23 , to unit  24  and to unit  25 . Bus  26  is coupled to connection  46 . 
   The telecommunication system according to the invention as shown in  FIG. 1  functions as follows. 
   According to a first embodiment, a user of terminal  1  wants to perform vocal commanding, like firstly name dialling. Thereto, said user dials a first telephone number, for example by pressing keys of the keyboard of mmi  11 , in response to which, under control of processor  10 , a first signalling signal is sent via connection  16  and transceiver  14  and base station  4  and connection  40  to coupler  33  of switch  3 . Under control of processor  30 , said first signalling signal is supplied via connection  44  to unit  31  for example being a detector for detecting an indication signal like said first signalling signal, which detector  31  detects said first signalling signal and informs processor  30  that said user wants to perform name dialling via terminal  1 . In response, processor  30  sends a first information signal to speech recognizer  2  via coupler  33  and connection  46  for informing speech recognizer  2  that said user wants to perform name dialling via terminal  1 . This first information signal either comprises for example a user identification and/or a terminal identification (direct addressing) or comprises an address code which in switch  3  is related to said user identification and/or terminal identification (indirect addressing). In speech recognizer  2 , unit  22  for example being a detector detects said first information signal as arrived via connection  46  and bus  26  under control of processor  20  via control bus  27  and informs processor  20  via control bus  27  of said detection. In response, processor  20  controls unit  23  for example being an adjustor via control bus  27  in such a way that a first capacity parameter having a first value (for example sampling rate 8000, bandwidth 4.8 kbps, noise reduction: no, complexity 5 wMops, purpose: name dialling) is sent back to switch  3  and/or terminal  1 . In response to this first capacity parameter (at the hand of said user identification and/or terminal identification and/or address code), processor  30  in switch  3  makes available a predefined bandwidth between terminal  1  and switch  3 , and/or processor  10  in terminal  1  adjusts a predefined sampling rate and/or reserves a predefined amount of time and/or deactivates noise reduction, for example. As a result, said user can now perform name dialling, by entering speech via the microphone of mmi  11 , which via switch  3  is supplied to speech recognizer  2  for recognizing said speech, in response to which a name is recognized and a corresponding destination number stored in memory  21  is sent to switch  3 . As a result, a speech connection is created from terminal  1  via switch  3  to a destination defined by said destination number, etc. 
   Then, said user of terminal  1  wants to perform vocal commanding, like secondly control &amp; command (for controlling and/or commanding for example certain services available in the network). Thereto, said user dials a second telephone number (different from said first telephone number), for example by pressing keys of the keyboard of mmi  11 , in response to which, under control of processor  10 , a second signalling signal (different from said first signalling signal) is sent via connection  16  and transceiver  14  and base station  4  and connection  40  to coupler  33  of switch  3 . Under control of processor  30 , said second signalling signal is supplied via connection  44  to unit  31  for example being a detector for detecting an indication signal like said second signalling signal, which detector  31  detects said second signalling signal and informs processor  30  that said user wants to perform command &amp; control via terminal  1  In response, processor  30  sends a second information signal to speech recognizer  2  via coupler  33  and connection  46  for informing speech recognizer  2  that said user wants to perform command &amp; control via terminal  1 . This second information signal either comprises for example a user identification and/or a terminal identification (direct addressing) or comprises an address code which in switch  3  is related to said user identification and/or terminal identification (indirect addressing). In speech recognizer  2 , unit  22  for example being a detector detects said second information signal as arrived via connection  46  and bus  26  under control of processor  20  via control bus  27  and informs processor  20  via control bus  27  of said detection. In response, processor  20  controls unit  23  for example being an adjustor via control bus  27  in such a way that a second capacity parameter having a second value (for example sampling rate 11000, bandwidth 5.0 kbps, noise reduction: no, complexity 10 wMops, purpose: command &amp; control) is sent back to switch  3  and/or terminal  1 . In response to this second capacity parameter (at the hand of said user identification and/or terminal identification and/or address code), processor  30  in switch  3  makes available a predefined bandwidth between terminal  1  and switch  3 , and/or processor  10  in terminal  1  adjusts a predefined sampling rate and/or reserves a predefined amount of time and/or deactivates noise reduction, for example. As a result, said user can now perform command &amp; control, by entering speech via the microphone of mmi  11 , which via switch  3  is supplied to speech recognizer  2  for recognizing said speech, in response to which commands and/or controls are recognized and a corresponding command and/or control is performed, etc. 
   Then, said user of terminal  1  wants to perform vocal commanding, like thirdly dictation (for dictating for example a text to be stored/processed in the network). Thereto, said user dials a third telephone number (different from said first/second telephone number), for example by pressing keys of the keyboard of mmi  11 , in response to which, under control of processor  10 , a third signalling signal (different from said first/second signalling signal) is sent via connection  16  and transceiver  14  and base station  4  and connection  40  to coupler  33  of switch  3 . Under control of processor  30 , said third signalling signal is supplied via connection  44  to unit  31  for example being a detector for detecting an indication signal like said third signalling signal, which detector  31  detects said third signalling signal and informs processor  30  that said user wants to perform dictation via terminal  1 . In response, processor  30  sends a third information signal to speech recognizer  2  via coupler  33  and connection  46  for informing speech recognizer  2  that said user wants to perform dictation via terminal  1 . This third information signal either comprises for example a user identification and/or a terminal identification (direct addressing) or comprises an address code which in switch  3  is related to said user identification and/or terminal identification (indirect addressing). In speech recognizer  2 , unit  22  for example being a detector detects said third information signal as arrived via connection  46  and bus  26  under control of processor  20  via control bus  27  and informs processor  20  via control bus  27  of said detection. In response, processor  20  controls unit  23  for example being an adjustor via control bus  27  in such a way that a third capacity parameter having a third value (for example sampling rate 16000, bandwidth 5.0 kbps, noise reduction: no, complexity 12 wMops, purpose: dictation) is sent back to switch  3  and/or terminal  1 . In response to this third capacity parameter (at the hand of said user identification and/or terminal identification and/or address code), processor  30  in switch  3  makes available a predefined bandwidth between terminal  1  and switch  3 , and/or processor  10  in terminal  1  adjusts a predefined sampling rate and/or reserves a predefined amount of time and/or deactivates noise reduction, for example. As a result, said user can now perform dictation, by entering speech via the microphone of mmi  11 , which via switch  3  is supplied to speech recognizer  2  for recognizing said speech, in response to which dictation takes place and text for example in memory  21  is stored/processed, etc. 
   According to a first alternative to said first embodiment, for example in case of said user wanting to perform vocal commanding like command &amp; control and/or dictation, said switch  3  and/or said terminal  1  respectively may, in response to receiving (a part of) a second or third capacity parameter having said second or third value, compare (said part of) said capacity parameter with a predefined (part of a) capacity parameter (by for example using a detector—like detector  31  in switch  3  and unit  12  in terminal  1 —and/or a comparator—like unit  32  in switch  3  and unit  12  in terminal  1 -), and decide that at the moment the necessary capacity is not available, in response to which (said part of) said capacity parameter must be replaced by (a part of) said first capacity parameter, and a warning signal is to be sent to speech recognizer  2  and/or terminal  1  and switch  3  respectively (by for example using a warning signal generator). Such a warning signal can, at terminal  1 , for example be shown at the display of mmi  11  or be generated via the loudspeaker of mmi  11 . 
   According to a second alternative to said first embodiment, terminal  1  comprises a preprocessing unit (for example unit  13  or a part of processor  10 ) for preprocessing voice signals generated via mmi  11  (microphone), in which case in speech recognizer  2  a final processing function (for example unit  24 ) for final processing said preprocessed voice signal, in which case a distributed speech recognition system has been created. 
   According to a third alternative to said first embodiment, terminal  1  comprises a small vocal commanding unit like for example a simple name dialler (for example unit  13  or a part of processor  10 ), and instead of dialling said first, second and/or third telephone numbers, said user can enter said numbers through voice and the microphone of mmi  11 . 
   According to a second embodiment, said user of terminal  1  wants to perform vocal commanding, like firstly name dialling or secondly command &amp; control or thirdly dictation. Thereto, for each possibility, said user dials one telephone number, for example by pressing keys of the keyboard of mmi  11 , and then enters a key signal (like a first key for name dialling, a second key for command &amp; control and a third key for dictation) in response to which, under control of processor  10 , a signalling signal is sent via connection  16  and transceiver  14  and base station  4  and connection  40  to coupler  33  of switch  3 . Under control of processor  30 , said signalling signal is supplied via connection  44  to unit  31  for example being a detector for detecting an indication signal like said signalling signal, which detector  31  detects said signalling signal and informs processor  30  that said user wants to perform name dialling (first key used) or command &amp; control (second key used) or dictation (third key used) via terminal  1 . In response, processor  30  sends an information signal to speech recognizer  2  via coupler  33  and connection  46  for informing speech recognizer  2  that said user wants to perform name dialling/command &amp; control/dictation via terminal  1 . This information signal either comprises for example a user identification and/or a terminal identification (direct addressing) or comprises an address code which in switch  3  is related to said user identification and/or terminal identification (indirect addressing). In speech recognizer  2 , unit  22  for example being a detector detects said information signal as arrived via connection  46  and bus  26  under control of processor  20  via control bus  27  and informs processor  20  via control bus  27  of said detection. In response, processor  20  controls unit  23  for example being an adjustor via control bus  27  in such a way that a first/second/third capacity parameter having a first/second/third value is sent back to switch  3  and/or terminal  1 . In response to this capacity parameter (at the hand of said user identification and/or terminal identification and/or address code), processor  30  in switch  3  makes available a predefined bandwidth between terminal  1  and switch  3 , and/or processor  10  in terminal  1  adjusts a predefined sampling rate and/or reserves a predefined amount of time and/or deactivates noise reduction, for example. As a result, said user can now perform name dialling/command &amp; control/dictation etc. 
   According to a first alternative to said second embodiment, for example in case of said user wanting to perform vocal commanding like command &amp; control and/or dictation, said switch  3  and/or said terminal  1  respectively may, in response to receiving (a part of) a second or third capacity parameter having said second or third value, compare (said part of) said capacity parameter with a predefined (part of a) capacity parameter (by for example using a detector—like detector  31  in switch  3  and unit  12  in terminal  1 —and/or a comparator—like unit  32  in switch  3  and unit  12  in terminal  1 -), and decide that at the moment the necessary capacity is not available, in response to which (said part of) said capacity parameter must be replaced by (a part of) said first capacity parameter, and a warning signal is to be sent to speech recognizer  2  and/or terminal  1  and switch  3  respectively (by for example using a warning signal generator). Such a warning signal can, at terminal  1 , for example be shown at the display of mmi  11  or be generated via the loudspeaker of mmi  11 . 
   According to a second alternative to said second embodiment, terminal  1  comprises a preprocessing unit (for example unit  13  or a part of processor  10 ) for preprocessing voice signals generated via mmi  11  (microphone), in which case in speech recognizer  2  a final processing function (for example unit  24 ) for final processing said preprocessed voice signal, in which case a distributed speech recognition system has been created. 
   According to a third alternative to said second embodiment, terminal  1  comprises a small vocal commanding unit like for example a simple name dialler (for example unit  13  or a part of processor  10 ), and instead of dialling said one telephone number, said user can enter said number through voice and the microphone of mmi  11 . 
   According to a fourth alternative to said second embodiment, terminal  1  comprises a small vocal commanding unit like for example a simple name dialler (for example unit  13  or a part of processor  10 ), and instead of entering said key signals, said user can enter them through voice and the microphone of mmi  11 . 
   According to a third embodiment, said user of terminal  1  wants to perform vocal commanding, like firstly name dialling or secondly command &amp; control or thirdly dictation. Thereto, for each possibility, said user dials one telephone number, for example by pressing keys of the keyboard of mmi  11 , in response to which, under control of processor  10 , a signalling signal is sent via connection  16  and transceiver  14  and base station  4  and connection  40  to coupler  33  of switch  3 . Under control of processor  30 , said signalling signal is supplied via connection  44  to unit  31  for example being a detector for detecting an indication signal like said signalling signal, which detector  31  detects said signalling signal and informs processor  30  that said user wants to perform vocal commanding via terminal  1 . In response, processor  30  sends an information signal to speech recognizer  2  via coupler  33  and connection  46  for informing speech recognizer  2  that said user wants to perform vocal commanding via terminal  1 . This information signal either comprises for example a user identification and/or a terminal identification (direct addressing) or comprises an address code which in switch  3  is related to said user identification and/or terminal identification (indirect addressing). In speech recognizer  2 , unit  22  for example being a detector detects said information signal as arrived via connection  46  and bus  26  under control of processor  20  via control bus  27  and informs processor  20  via control bus  27  of said detection. In response, processor  20  controls unit  23  for example being an adjustor via control bus  27  in such a way that a general capacity parameter having a general value is sent back to switch  3  and/or terminal  1 . In response to this capacity parameter (at the hand of said user identification and/or terminal identification and/or address code), processor  30  in switch  3  makes available a predefined bandwidth between terminal  1  and switch  3 , and/or processor  10  in terminal  1  adjusts a predefined sampling rate and/or reserves a predefined amount of time and/or deactivates noise reduction, for example. As a result, said user can now perform vocal commanding, and during this vocal commanding said user starts a dialogue with speech recognizer  2  for having said capacity parameter adjusted etc. 
   According to a first alternative to said third embodiment, for example in case of said user wanting to perform or is performing vocal commanding like command &amp; control and/or dictation, said switch  3  and/or said terminal  1  respectively may decide that at the moment the necessary capacity is not available, in response to which said warning signal is to be sent to speech recognizer  2  and/or terminal  1  and switch  3  respectively etc. 
   According to a second alternative to said third embodiment, terminal  1  comprises a preprocessing unit (for example unit  13  or a part of processor  10 ) for preprocessing voice signals generated via mmi  11  (microphone), in which case in speech recognizer  2  a final processing function (for example unit  24 ) for final processing said preprocessed voice signal, in which case a distributed speech recognition system has been created. 
   According to a third alternative to said third embodiment, terminal  1  comprises a small vocal commanding unit like for example a simple name dialler (for example unit  13  or a part of processor  10 ), and instead of dialling said one telephone number, said user can enter said number through voice and the microphone of mmi  11 . 
   According to a fourth alternative to said third embodiment, terminal  1  comprises a small vocal commanding unit like for example a simple name dialler (for example unit  13  or a part of processor  10 ), and at least a part of said dialogue takes place under control of and/or by using this small vocal commanding unit, etc. 
   According to a fourth embodiment, a connection between terminal  1  and speech recognizer  2  via switch  3  is already there, and an application is running in processor  10  in terminal  1  or partly in processor  20  in speech recognizer  2  and partly in processor  10 . Then, said (part of an) application in said terminal decides that vocal commanding should be offered to said user and/or that the kind of vocal commanding should be changed. Thereto, from terminal  1  (via an indication signal generator not shown and for example forming part of processor  10 ) an indication signal is sent to coupler  33  of switch  3 . Under control of processor  30 , said indication signal is supplied via connection  44  to unit  31  for example being a detector for detecting said indication signal, which detector  31  informs processor  30  that said (part of an) application wants to offer and/or to change said vocal commanding, etc. In response, processor  30  sends an information signal to speech recognizer  2  via coupler  33  and connection  46  for informing speech recognizer  2  that said (part of on) application in said terminal  1  user wants to offer/change vocal commanding via terminal  1 . This information signal either comprises for example a user identification and/or a terminal identification (direct addressing) or comprises an address code which in switch  3  is related to said user identification and/or terminal identification (indirect addressing) In speech recognizer  2 , unit  22  for example being a detector detects said information signal as arrived via connection  46  and bus  26  under control of processor  20  via control bus  27  and informs processor  20  via control bus  27  of said detection. In response, processor  20  controls unit  23  for example being an adjustor via control bus  27  in such a way that a specific capacity parameter having a specific value is sent back to switch  3  and/or terminal  1 . In response to this capacity parameter (at the hand of said user identification and/or terminal identification and/or address code), processor  30  in switch  3  makes available a predefined bandwidth between terminal  1  and switch  3 , and/or processor  10  in terminal  1  adjusts a predefined sampling rate and/or reserves a predefined amount of time and/or (de)activates noise reduction, for example. As a result, vocal commanding is offered and/or changed etc. 
   According to a first alternative to said fourth embodiment, for example in case of said application wanting to offer vocal commanding like command &amp; control and/or dictation, said switch  3  and/or said terminal  1  respectively may decide that at the moment the necessary capacity is not available, in response to which said warning signal is to be sent to speech recognizer  2  and/or terminal  1  and switch  3  respectively etc. 
   According to a second alternative to said fourth embodiment, terminal  1  comprises a preprocessing unit (for example unit  13  or a part of processor  10 ) for preprocessing voice signals generated via mmi  11  (microphone), in which case in speech recognizer  2  a final processing function (for example unit  24 ) for final processing said preprocessed voice signal, in which case a distributed speech recognition system has been created. 
   According to a third alternative to said fourth embodiment, terminal  1  comprises a small vocal commanding unit like for example a simple name dialler (for example unit  13  or a part of processor  10 ), and at least a part of a dialogue takes place under control of and/or by using this small vocal commanding unit, etc. 
   According to a fifth embodiment, a connection between terminal  1  and speech recognizer  2  via switch  3  is already there, and an application is running in processor  20  in speech recognizer  2  or partly in processor  20  and partly in processor  10  in terminal  1 . Then, said (part of an) application in said speech recognizer  2  decides that vocal commanding should be offered to said user and/or that the kind of vocal commanding should be changed. Thereto, from speech recognizer  2  (for example via unit  25  being an indication signal generator) an indication signal is sent to coupler  33  of switch  3 . Under control of processor  30 , said indication signal is supplied via connection  44  to unit  31  for example being a detector for detecting said indication signal, which detector  31  informs processor  30  that said (part of an) application wants to offer and/or to change said vocal commanding, etc. In response, processor  30  sends an information signal to speech recognizer  2  via coupler  33  and connection  46  for informing speech recognizer  2  that said (part of an) application in said terminal  1  user wants to offer/change vocal commanding via terminal  1 . This information signal either comprises for example a user identification and/or a terminal identification (direct addressing) or comprises an address code which in switch  3  is related to said user identification and/or terminal identification (indirect addressing). In speech recognizer  2 , unit  22  for example being a detector detects said information signal as arrived via connection  46  and bus  26  under control of processor  20  via control bus  27  and informs processor  20  via control bus  27  of said detection. In response, processor  20  controls unit  23  for example being an adjustor via control bus  27  in such a way that a specific capacity parameter having a specific value is sent back to switch  3  and/or terminal  1 . In response to this capacity parameter (at the hand of said user identification and/or terminal identification and/or address code), processor  30  in switch  3  makes available a predefined bandwidth between terminal  1  and switch  3 , and/or processor  10  in terminal  1  adjusts a predefined sampling rate and/or reserves a predefined amount of time and/or (de)activates noise reduction, for example. As a result, vocal commanding is offered and/or changed etc. 
   According to a first alternative to said fifth embodiment, for example in case of said application wanting to offer vocal commanding like command &amp; control and/or dictation, said switch  3  and/or said terminal  1  respectively may decide that at the moment the necessary capacity is not available, in response to which said warning signal is to be sent to speech recognizer  2  and/or terminal  1  and switch  3  respectively etc. 
   According to a second alternative to said fourth embodiment, terminal  1  comprises a preprocessing unit (for example unit  13  or a part of processor  10 ) for preprocessing voice signals generated via mmi  11  (microphone), in which case in speech recognizer  2  a final processing function (for example unit  24 ) for final processing said preprocessed voice signal, in which case a distributed speech recognition system has been created. 
   According to a third alternative to said fourth embodiment, terminal  1  comprises a small vocal commanding unit like for example a simple name dialler (for example unit  13  or a part of processor  10 ), and at least a part of a dialogue takes place under control of and/or by using this small vocal commanding unit, etc. 
   All embodiments are just embodiments and do not exclude other embodiments not shown and/or described. All alternatives are just alternatives and do not exclude other alternatives not shown and/or described. Any (part of an) embodiment and/or any (part of an) alternative can be combined with any other (part of an) embodiment and/or any other (part of an) alternative. 
   Said terminal, base station and switch can be in accordance with GSM, UMTS, DECT, ISDN, PSTN etc. Said construction of said terminal, switch and speech recognizer con be amended without departing from the scope of this invention. Parallel blocks can be connected serially, and vice versa, and each bus can be replaced by separate connections, and vice versa. Said units and circuits, as well as all other blocks shown and/or not shown, can be 100% hardware, or 100% software, of a mixture of both. Each unit, circuit and block can be integrated with a processor or any other part, and each function of a processor can be realised by a separate unit, circuit or block. Any part of said speech recognizer can be shifted into said switch, and vice versa, and both can be completely integrated. Any connection can be circuit-switched all the time, packet-switched all the time, or circuit-switched during a first time-interval and packet-switched during a second time-interval. 
   Said adjustor can adjust a capacity parameter (direct adjustment) or command/request said memory to read out a certain capacity parameter (indirect adjustment via generation). In case said adjustor is located in said terminal, or said terminal is provided with a further adjustor, at least a part of the decision taking process is shifted into said terminal. In case said detector is located in said terminal and/or in said speech recognizer, or said terminal is provided with a further detector and/or said speech recognizer is provided with a yet further detector, at least a part of the detection process is shifted into said terminal and/or into said speech recognizer.