Voice Processing (signalling dependent)
45
SmartNode 5530 User Manual
B
• Specifications
Voice Processing (signalling dependent)
Four, eight, or 16 full-duplex channels with voice CODECS:
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G.711 A-Law/-Law (64 kbps)
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G.722 (64 kbps)
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G.726 (ADPCM 16,24,32,40 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 ISDN data
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AMR-NB (4.75, 5.15, 5.9, 6.7, 7.4, 7.95, 10.2, 12.2 kbps)
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iLBC at 13.33 & 15.2 kbps
G.168 echo cancellation (128 ms)
Four, eight, or 16 simultaneous low-bandwidth 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, etc.)
Configurable transmit packet length
RTP/RTCP (RFC 1889)
SRTP (RFC 3711)
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)
G.711 Fax-Bypass
Voice Signalling
SIPv2
SIPv2 over IPv6
SIPv2 over TLS
SIP call transfer, redirect
Overlap or en-bloc dialing
DTMF in-band, out-of-band