LifeSize Gateway-PRI User Manual page 14

About Gateway Features
Table 1-2 LifeSize Gateway Feature Specifics
Feature
Supported ports
Supported video
conferencing protocols
Supported audio codecs
Audio Transcoding
Supported video protocols
Supported video resolutions
Supported bandwidths
(Kbps)
6 LifeSize Gateway User Guide
Gateway-PRI
2 PRI ISDN ports
The term audio transcoded video calls refers to the process whereby an audio stream in a
multimedia call can be transcoded from one codec type to another.
Basic and advanced audio coding supported codecs: G.711, G.722, G.722.1, G.723.1, G.728
G.711 (ISDN) < > G.723.1 (IP) for up to 60
voice channels.
G.711 (IP) < > G.728 (ISDN) for up to 20
audio transcoded video channels.
The LifeSize Gateway automatically
performs A-Law G.711-to-µ-Law G.711
translation between the IP and ISDN sides if
needed.
Note When your LifeSize unit includes
both a LifeSize Gateway and an MCU, G.728
transcoding is supported on the MCU only.
H.261, H.263, H.263+ (Annexes F, J and N), H.263++ (Annex W), H.264
VGA, XGA, SVGA, SIF, 4SIF, CIF, QCIF, 4CIF, 16CIF
56, 64, 112, 128, 168, 192, 224, 256, 280,
320, 336, 384, 448, 512, 672, 768, 1288,
1472, 1680 and 1920
Note Bandwidth rates of 256 Kbps and up support the G.722 audio codec.
Gateway-Serial
4 serial ports
H.320, H.323 (v4.0)
Transcoding for the 4 supported multimedia
calls.
56, 64, 112, 128, 168, 192, 224, 256, 280,
320, 336, 384, 448, 512, 672, 768, 1288,
1472 and 1920