GSM/GPRS Spider SA User Manual
3.5Attaching 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
GSM0000PB001MAN | 9 | Version 1.07 - 02/14/05 |