Nơi xuất xứ
Guangdong, China
Product Name
hotel phone system
Flash time adjustable
1000/600/300/100ms optional
Dialing mode
Tone/Pulse PABX compatible
Redial
Last number redial 32 digits
Ringtone volume adjustment
Hi-Lo
Hearing Aid Compatible
Optional
Indicator
inuse/mute/ringer
Color
Black/Gray/White/Red,etc