In Office Communicator 2007 R2, the following voice and video enhancements improve the experience during an Office Communicator voice or video conversation:
Video call controls. The video call controls have been
updated for easier use. During a video call, you can double-click
the video to automatically resize the video to full screen.
High Definition and Video Graphics Array (VGA) video.
Previously, Communicator supported the Common Intermediate Format
(CIF) video format, which has a resolution of 352 x 288. Now, both
VGA display (the default format, with a resolution 640 x 480, ratio
4:3) and High Definition (enabled by policy, with a resolution 1280
x 720, ratio 16:9) are available to Communicator users. When a user
selects the video size, the appropriate format is selected. In
large mode, the video format is VGA. In full screen mode, the video
format is High Definition.
Video policy setting for conference rooms. With the new
policy setting EnableFullScreenVideoPreviewDisabled, administrators
can enable Office Communicator to show video in full screen with
the preview disabled for all Office Communicator video calls This
policy is typically used in conference room settings.
Reduced call setup time. Updates to the implementation of
the protocols that support early media negotiation help to reduce
call setup time and reduce delays when a call is established.
Improved connectivity. Peer-to-peer voice conversations
remain connected even when the SIP signaling channel is lost.
Participants can continue the voice call while Office Communicator
attempts to reestablish the signaling channel.
Voice and video quality indicators. New indicators in the
Conversation window indicate situations that may be affecting the
quality of the voice or video call, including poor network
conditions, low bandwidth network connections, or poor audio
quality from a particular device.