SIP协议电话机 可视门禁电话机 可视ip话机 IP防水门禁可视对讲门机

TFT 特征

语音编码： G.711a/u, G.7231 high/low, G.729a/b, G.722, G.726, iLBC, AMR-NB; AMR-WB

Video codecs:H.263, H264, MPEG4

分辨率: QCIF,CIF,QVGA

图像格式: PEG GIF and BMP PNG

Video formats: MP4, 3 GP and FLV

Echo cancellation: G.168 compatible with the LEC, including hands-free(AEC)

VGS, VAD,CNG,Jitter buffer

支持双工对讲

Possibility of registering a domain or implementation of SIP calls Peer to peer

支持STUN

支持SIP SMS

Adjusting the volume in all modes(headset/handsefree/headsetwire/bell)

对比度 1000 : 1

亮度 : 450cd/m²

视角 : 178 degrees horizontal / 178 degrees vertical (at contrast ratio of 10:1)

Screen orientation Portrait instead of landscape.

可视门禁机 可视ip话机 IP防水门禁可视对讲门机