PPP and Frame-Relay support
49
SmartNode 4300 Series User Manual
B
• Specifications
PPP and Frame-Relay support
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Frame-Relay (8 PVCs)
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RFC1440, FRF.12 fragmentation
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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:
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G.711 A-Law/μ-Law (64 kbps)
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G.726 (ADPCM 40, 32, 24, 16 kpbs)
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G.723.1 (5.3 or 6.3 kbps)
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G.729ab (8 kbps)
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Transparent pass through
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G.168 echo cancellation
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Up to 32 parallel voice connections
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DTMF detection and generation
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Carrier tone detection and generation
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Silence suppression and comfort noise
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Configurable dejitter buffer
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Configurable tones (dial, ringing, busy)
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Configurable transmit packet length
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RTP/RTCP (RFC 1889)
Fax and modem support
G.711 transparent FAX
Fax over IP (FoIP)
T.38 Fax relay (9.6 k, 14.4 k)
