Filter
Top Products
Fax and modem support 51
SmartNode 4400 Getting Started Guide B • Specifications
• 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
Fax over IP (FoIP)
T.38 Fax relay (9.6 k, 14.4 k)
Voice signaling
H.323v4:
• RAS, H.225, H.245
• Fast-connect, early H.245
• Gatekeeper autodiscovery
• Alias registration
• Overlap sending
• Empty capability set (call transfer, hold)
• H.323v1 call transfer, hold
• H.323 GW and GK compatible
• H.323 Annex M3
SIP:
• SIPv2 (RFC3261, RFC3263)
• SIP call transfer, redirect, DTMF relay