GE863-QUAD / PY Software User Guide

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2.6 Placing a Voice call GE863-QUAD / PY Software User Guide 1vv0300746 Rev. 1 - 23/10/06 Before a voice call can be placed, it is recommended to check if the mobile is registered on a network (see par. 2.5.3.1) and if the signal strength is enough to ensure a call can be made (see par. 0). 2.6.1 Voice call device set up 2.6.1.1 Set the device in voice mode • Send command AT+FCLASS=8 • wait for OK response NOTE: This command may be omitted if the modifier ";" is added at the end of the ATD command after the number to be dialed. 2.6.1.2 Set the desired audio path active The GE863-QUAD / PY has two different audio paths: - internal microphone/ear (MT) - external microphone/ear (HF) Usually the internal path is used for a handset function, while the external is used for handsfree function. There are two way to switch between these two paths: - SOFTWARE: by using the command AT#CAP= (with n=1 OR n=2) - HARDWARE: by setting AT#CAP=0 and setting the AXE input high (internal MT) or low (external HF). If only one path is needed, then it is preferable to use the internal one (MT). TIP: when Hardware control is not needed AXE pin can be left unconnected. TIP: the audio paths can be switched also during a call in both ways. • Send command AT#CAP= where: = 0 for HARDWARE control with AXE input = 1 for external HF path (regardless of the AXE input status) = 2 for internal MT path (regardless of the AXE input status) • wait for OK response Reproduction forbidden without Telit Communications S.p.A. written authorization - All Right reserved page 24 of 117
For example: 1 - Let's assume that the desired audio path is always the internal MT Command: AT#CAP=2 Answer: OK GE863-QUAD / PY Software User Guide 1vv0300746 Rev. 1 - 23/10/06 2 - Let's assume that the desired audio path has to be determined by HARDWARE pin AXE Command: AT#CAP=0 Answer: OK Now set the hardware pin AXE in the desired status. 2.6.1.3 Set the desired volume on the active audio path speaker output This setting is not strictly necessary; it is also possible to keep the default volume setting. • Send command AT+CLVL= where: is a number between 0 and 10 representing the volume setting: 0 – minimum volume 10 - maximum volume • wait for OK response NOTE: The volume setting refers to the ACTIVE path ear line and is stored each time. When changing audio path the volume setting will be reset to the previously stored value for that audio path. Reproduction forbidden without Telit Communications S.p.A. written authorization - All Right reserved page 25 of 117
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