Voice processing (signaling dependent)
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SmartNode 4830 DSL Series User Manual
B • Specifications
Voice processing (signaling dependent)
Voice codes:
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G.711 A-Law/μ-Law (64 kbps)
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G.726 (ADPCM 40, 32, 24, 16 kbps)
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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
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
Fax over IP (FoIP)
T.38 Fax relay (9.6 k, 14.4 k)
Voice signaling
H.323v4
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RAS, H.225, H.245
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Fast-connect, early H.245
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Gatekeeper autodiscovery
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Alias registration
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Overlap sending
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Empty capability set (call transfer, hold)
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H.323v1 call transfer, hold
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H.323 GW and GK compatible
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H.323 Annex M3