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GSM/GPRS Spider SA User Manual
GSM0000PB001MAN 9 Version 1.07 - 02/14/05
3.5 Attaching a Microphone/Speaker
To place a voice call, insert a microphone/speaker to the port labeled “MIC
AUDIO” as shown below in Figure 8. The plug is a standard 2.5mm audio
connector. Many existing mobile phone headsets can be used.
Figure 8: Attaching a Headset to the GSM/GPRS Spider SA Module