Siemens C75 Audio and Communication

Audio and Communication

The Siemens C75 features a loudspeaker and supports vibration and downloadable polyphonic ringtones, which were popular at the time. It does not include a 3.5mm headphone jack, which limits audio accessory choices. In terms of connectivity, the phone lacks WLAN and Bluetooth options, but it offers an infrared port for data transfer, which was a common feature in this era for device-to-device communication. The proprietary USB serves as another means for connecting the phone to a PC.