Details：
Ordinary dialing function, handset mode; support for checking busy tone, automatic hang-up function; 3 groups of blank keys on the right side can pre-store numbers for one-touch speed dialing; compatible with various program-controlled switches, support switch's multicast function
Details：
Hands-free mode, ordinary phone use; RJ45 interface, can support POE; POE or DC12V power supply; when the called party rings, the loudspeaker will ring and the warning light will flash; support speed dial function, 4 groups of one-key dialing; WEB page Registration configuration, automatic answer, hotline number, do not disturb, etc.; compatible with various SIP protocol IPPBX, support alarm broadcast video trigger linkage
Details：
Handset mode, ordinary telephone usage; RJ45 interface, can support POE; POE or DC12V power supply; when the called party is ringing, the loudspeaker will ring and the warning light will flash; support speed dial function, 3 groups of one-key dialing; WEB page registration Configuration, automatic answer, hotline number, do not disturb, etc.; compatible with various SIP protocol IPPBX, support alarm broadcast video trigger linkage
Details：
Hands-free mode, ordinary telephone use; RJ45 interface, can support POE; POE or DC12V power supply; when the called party rings, the loudspeaker will ring; support speed dial function, 4 groups of one-key dialing; WEB page registration configuration, automatic Answer, hotline number, do not disturb, etc.; compatible with various SIP protocol IPPBX, support alarm broadcast video trigger linkage
Details：
Handset mode, ordinary phone usage; RJ45 interface, can support POE; POE or DC12V power supply; when the called party rings, the loudspeaker will ring; support speed dial function, 3 groups of one-key dialing; WEB page registration configuration, automatic answer , Hotline number, do not disturb, etc.; compatible with various SIP protocol IPPBX, support alarm broadcast video trigger linkage
Details：
Hands-free mode, ordinary telephone use; RJ45 interface, can support POE; power supply: POE or DC12V; when the called party rings, the warning light will flash; support speed dial function, 4 groups of one-key dialing; WEB page registration configuration , Automatic answer, hotline number, do not disturb, etc.; compatible with various SIP protocol IPPBX, support alarm broadcast video trigger linkage
