– Compatible with fax machines and modem speeds up to 28.8 kbps
– Precise dial tone 32V DC talk battery
– Switch selectable ring cadence
– Provides CPC breaks after hang-up on either port
– Switch selectable audio attenuation
– Provides 2 seconds of precise dial tone after off-hook
– Provides ring back signal to calling device
– One or two way ring down capability
– Jumber selectable ring count
– Ring down and dial tone off mode (ideal for prison phone communications, etc.)