Voice connectivity
49
SmartNode 4950 User Manual
B • Specifications
Note
Refer to the software feature matrix for the most up-to-date specifications.
Voice connectivity
1 or 4 PRI T1/E1 ports on RJ48C connectors
Net/User configurable per port
Each port can be slave or master clock
Each port can be used to synchronize to an external clock master
Failover relay between ports 0/0 and 0/1 for specific models
Data connectivity
Two 10/100/1000Base-Tx Gigabit Ethernet ports
All ports 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.726 (ADPCM 16, 24, 32, 40 kbps)
•
G.723.1 (5.3 or 6.3 kbps)
•
G.729ab (8 kbps)
•
Transparent ISDN data
G.168 echo cancellation (128 ms)
Up to 120 simultaneous 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)
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)
