| 摘要 |
FIELD: radio engineering, communication.SUBSTANCE: mobile device (100) for third party call contains: the signal processing unit (110); the first communication module (120) connected with the signal processing unit (110) through the first switch (125); the second communication module (130) connected with the signal processing unit (110) through the second switch (135); the microphone (140) connected to the signal processing unit (110) through the third switch (145); the loudspeaker (150) connected to the signal processing unit (110) through the fourth switch (155); and the control interface (160) connected to the signal processing unit (110) and sending the control signal to the signal processing unit (110). The signal processing unit (110) according to the control signal controls switching on/off of the first switch (125), of the second switch (135), of the third switch (145) and of the fourth switch (155).EFFECT: providing possibility for subscribers to establish a third party call without additional mobile communication services.10 cl, 5 dwg |
