Features Comparison
| |
DLC, IP-IP
|
DLC, IP – ISDN
|
Office
|
Classroom
|
|
2-way audio
& video
|
yes
|
yes
|
yes
|
no
|
|
1-way audio
& video
|
yes
|
yes
|
yes
|
yes
|
|
Polycom
|
yes
|
yes
|
no
|
no
|
|
Skype
|
no
|
no
|
yes
|
yes
|
|
Cost
|
none
|
$.30/min billed to calling site.
|
none
|
none
|
|
Training
|
vital
|
vital
|
minimal
|
minimal
|
|
Tech support staff present
|
yes
|
yes
|
no
|
only during initial implementation
|
|
Advance notice
|
10 business days*
|
20 business days*
|
none after training
|
none after training
|
|
Videoconference equipment
|
Polycom, computer, projector, sound system
|
Polycom, computer, projector, sound system
|
computer, microphone/speaker headset, web camera
|
computer, projector, sound system
|
|
Multiple sites support
|
yes; up to 4
|
yes; up to 96
|
only chat, whiteboard, and application sharing
|
only whiteboard, chat, and application sharing
|
|
Send computer output
|
yes
|
yes
|
no
|
no
|
|
Send VCR output
|
yes,via lectern camera
|
yes, via lectern camera
|
no
|
no
|
|
Send doc camera
|
yes, via lectern camera
|
yes, via lectern camera
|
no
|
no
|
|
Electronic whiteboard
|
no
|
no
|
yes
|
yes
|
|
Software application sharing
|
no
|
no
|
yes
|
yes
|
|
Pros
|
higher video quality than office or classrooms; free; less notice than ISDN*
|
higher video quality than office or classrooms; allows connections to businesses with ISDN only
|
free; easy to use; electronic whiteboard; application sharing; location flexibility; ISS equipment checkout
|
free; easy to use; electronic whiteboard; application sharing; location flexibility
|
|
Cons
|
complicated interface; required training; tech support present; advance notice
|
complicated interface; required training; not free; tech support present; several days advance notice
|
potentially choppy video; limited to IP connections (some businesses have only ISDN)
|
small video window;; potentially choppy video; limited to IP connections (some businesses have only ISDN)
|
DLC
= Distance Learning Classroom, 204 Cornell
Office and Classroom use Skype, which uses IP only.
IP means the use of a network data port; all Cornell locations use IP only.
ISDN is a subscriber telephone line; connections for remote locations are via MOREnet.
*For one remote site. Add 2 business days for each additional remote site.
Last Edited: 1/26/2010