FXS ports
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SmartNode 4900 Getting Started Guide
B • Specifications
FXS ports
The FXS ports provide for connection of up to 32 analog FXS devices on a 50- or 64-pin RJ-21X connector
located on the rear panel.
FXO ports
The FXO ports provide for connection of up to 32 analog FXO devices on a 50- or 64-pin RJ-21X connector
located on the rear panel.
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 (an encapsulation method created by the four companies:
Cisco, Northern Telecom, StrataCom, and DEC which differs from the IETF encapsulation)
•
PPP, PAP, CHAP, LCP, IPCP
Voice processing (signaling dependent)
Voice codecs:
•
G.711 A-Law/µ-Law (64 kbps)
•
G.726 (ADPCM 40, 32, 24, 16 kpbs)
•
G.723.1 (5.3 or 6.3 kbps)
•
G.729ab (8 kbps)
•
Transparent pass through
•
G.168 echo cancellation
•
8 parallel voice connections
•
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
G.711 transparent FAX
VoIPon www.voipon.co.uk [email protected] Tel: +44 (0)1245 808195 Fax: +44 (0)1245 600030