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SmartNode 4660 & 4670 User Manual
DSP
Up to three 8/12 channel DSPs
Voice Connectivity
2/4/8 ISDN BRI S0 ports, RJ-45. NT/TE configurable per port
Point-to-point, point-to-multipoint configurable
BRI port provides ISDN line power to connected terminals
Data Connectivity
Four 10/100Base-TX Ethernet LAN/WAN ports
Full duplex, autosensing, auto-MDX
Voice Processing (Signaling Dependent)
Up to 36 full-duplex channels of Voice CODECS:
•
G.711 A-Law/μ-Law (64 kbps)
•
G.726 (ADPCM 40, 32, 24, 16 kbps)
•
G.723.1 (6.3 kbps)
•
G.729ab (8 kbps)
•
Transparent ISDN data
G.168 echo cancellation
DTMF detection and generation
Carrier tone detection and generation
Silence suppression and comfort noise
Configurable dejitter buffer
Configurable tones (dial, ringing, busy)
Configurable transmit packet length
RTP/RTCP (RFC 1889)
Fax and Modem Support
Automatic fax and modem detection
Codec fallback for modem-bypass
T.38 Fax-Relay (Gr. 3 Fax, 9.6 k, 14.4 k)
G.711 Fax-Bypass
DSP
B • Specifications
46
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