DSP
39
SmartNode 5570 User Manual
B
• Specifications
Note
Refer to the software feature matrix for the most up-to-date specifications.
DSP
Two 16 channel DSP
Voice Connectivity
1 or 2 ISDN PRI ports, 4-wire
RJ45 ports NT/TE configurable per port (layer 1 pin-out does not change)
Life-line bypass relay between PRI 0/0 and PRI 0/1 ports (Depends on model; /R option)
Data Connectivity
Two 10/100/1000Base-TX Ethernet ports
All ports full duplex, autosensing, auto-MDX
Voice Processing (signalling dependent)
15 to 30 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)
•
G.723.1 (5.3 or 6.3 kbps)
•
G.729ab (8kbps)
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Transparent ISDN data
G.168 echo cancellation (128ms)
15 to 30 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)