![ETC](/logo/ETC.png)
Unspecified
Call Progress Tone Detector
![CML](/logo/CML.png)
CML Microsystems Plc
Dual Subscriber Private Metering (SPM) Detector
![CML](/logo/CML.png)
CML Microsystems Plc
Low-Power Subscriber Private Metering (SPM) Detector
![CML](/logo/CML.png)
CML Microsystems Plc
Call Progress Decoder
![CML](/logo/CML.png)
CML Microsystems Plc
Call Progress Tone Detector
![CML](/logo/CML.png)
CML Microsystems Plc
Calling line identifier
![CML](/logo/CML.png)
CML Microsystems Plc
"Eurocom" Delta Codec
![CML](/logo/CML.png)
CML Microsystems Plc
V23 Compatible Modem