DSP
53
SmartNode 4650 Getting Started Guide
B • Specifications
Note
Refer to the software feature matrix for the most up-to-date specifications.
DSP
One or two 4-channel DSP
Voice connectivity
3 or 5 ISDN BRI S0 (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
ISDN line power can be switched on per software per port
PPP and Frame-Relay support
X.21 or V.35 WAN
Frame-Relay (8 PVCs)
RFC1490, FRF.12 fragmentation
LMI, Q.933D, ANSI 617D, Gang of Four
PPP, PAP, CHAP, LCP, IPCP
Data connectivity
Two 10/100Base-TX 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/µ-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 (25 ms)
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
