Black Box mm146 User Manual page 7

required. This means you can experience the benefits of video without an
extensive and costly implementation phase.
Moving forward, mm146 and mm156 videophones also support the H.323
2.
protocol, so can adapt to future infrastructure changes, and interoperate with
equipment from other vendors.
Enhanced video calls
A range of features give the user greater flexibility when in a call. These include:
Full-duplex Acoustic Echo Canceller for pause-free hands-free audio confer-
1.
ences with no clipping.
Digital zoom
2.
Image control (faster/sharper)
3.
Local and remote audio and video source selection in call
4.
Brightness control
5.
Adjustable PiP
6.
Freeze frame option
7.
PIN authentication for security
8.
Improved ease of use
Video and audio calls from one phone (mm156)
1.
Fallback to PSTN (mm156)
2.
Central phonebook facility
3.
Built-in 10/100 hub allowing a PC to share your videophone connection
4.
Physical camera cover for complete privacy
5.
Introduction & Getting Started
5