The DP81 is an One‐button SIP Door Phone with advanced audio system with the echo cancellation function. with the touch screen control pad, you can speak to visitors at any time.
DP81 offers key-less control and convenience for the users opening the door without a key. The door can be open remotely if there is an electronic door lock. It’s ideal for control communication and security over internet such as business,institutional and residential applications.
Door Access: DTMF tones
Ideal for business, institutional and residential applications
Open remotely if there is an electronic door lock
One SIP line, Dual SIP servers
Door Phone features
Two‐way audio stream
SIP v1 (RFC2543), v2 (RFC3261)
SIP over TLS, SRTP
DNS SRV/ A Query/NATPR Query
STUN, Session timer
DTMF Mode: In‐Band, RFC2833 and SIP INFO