Network Code:Network Address Signaling Code_N_If the device does no signaling.
Analog Code:FIC_02RV2.0_2-wire loop reverse battery signaling/ loop closure from customer/ reverse battery from LEC/ 600 ohms. Used for PBX-E911 trunks.*
EUT STD:TIA-4965_Receive volume control requirements for digital and analog wireline handset terminals
Register:ACTA_SDoC_Administrative Council for Terminal Attachments