Welltech VoIP ATA series V.2.1 - Manual (Page 10)

ATA-171/172/171P/171M/171+/172+
User’s Guide
3.4.1 System Information
3.4.1 Function
View Model Name, Firmware Version, Codec Version etc.
3.4.2 Instruction
Model Name Show the name of the equipment
Firmware Version Show the Risc version information, e.g. Tue Jan 16 11:28:32
2007.
Codec Version Show the DSP version information, e.g. Wed Dec 20 17:28:06
2006.