Citel 6000 Guía Del Usuario
PBXgateway™ & EXTender™6000 System Administrator’s Guide
22
Voice Compression vs. Bandwidth
The PBXgateway provides a choice of voice compression algorithms to allow up to 12 phones to be
extended. The compression algorithm selected determines the bandwidth required.
DS0: The worldwide standard speed for digitized voice conversation at 64,000 bits per second.
ISDN: A digital transmission link consisting of two “B” channels (bearer) for voice and one “D” channel
(data). Each “B” channel transmits voice signals at 64,000 bits per second.
The following are user selectable voice compression methods supported by the PBXgateway to
accommodate the available bandwidth; G.729A (8 Kbps), ADPCM 24 (24 Kbps), ADPCM 32 (32 Kbps),
G.711 (64 Kbps)
Note: These numbers indicate the bandwidth required per phone, not including overhead (8k).
extended. The compression algorithm selected determines the bandwidth required.
DS0: The worldwide standard speed for digitized voice conversation at 64,000 bits per second.
ISDN: A digital transmission link consisting of two “B” channels (bearer) for voice and one “D” channel
(data). Each “B” channel transmits voice signals at 64,000 bits per second.
The following are user selectable voice compression methods supported by the PBXgateway to
accommodate the available bandwidth; G.729A (8 Kbps), ADPCM 24 (24 Kbps), ADPCM 32 (32 Kbps),
G.711 (64 Kbps)
Note: These numbers indicate the bandwidth required per phone, not including overhead (8k).