DSP
39
SmartNode 4130 User Manual
B
• Specifications
Note
Refer to the software feature matrix for the most up-to-date specifications.
DSP
One 4 or 8 channel DSP
Voice Connectivity
2 or 4 ISDN BRI S0/T0 (S/T), 4-wire
RJ45 ports NT/TE configurable per port
Point-to-point, point-to-multipoint configurable
Life-line bypass relay between BRI 0/0 and BRI 0/1 ports (Depends on model; /R option)
ISDN line power can be switched on per software per port
Data Connectivity
One 10/100/1000Base-TX Ethernet port
Full duplex, autosensing, auto-MDX
Voice Processing (signalling dependent)
Four or eight full-duplex channels with Voice CODECS:
•
G.711 A-Law/-Law (64 kbps)
•
G.722 (64 kbps)
•
G.726 (ADPCM 16,24,32,40 kbps)
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G.723.1 (5.3 or 6.3 kbps)
•
G.729ab (8kbps)
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Transparent ISDN data
G.168 echo cancellation (128ms)
Four or eight simultaneous low-bandwidth voice or T.38 fax calls
DTMF detection and generation
Carrier tone detection and generation
Silence suppression and comfort noise
Adaptive and configurable dejitter buffer
Configurable tones (dial, ringing, busy, etc.)
Configurable transmit packet length
RTP/RTCP (RFC 1889)
SRTP (RFC 3711)— Optional license required