Version 5.8
569
October 2009
SIP User's Manual
13. Technical Specifications
Function
Specification
Output Gain Control
-32 dB to +31 dB in steps of 1 dB
Input Gain Control
-32 dB to +31 dB in steps of 1 dB
Fax/Modem Relay
Fax Relay
Group 3 fax relay up to 14.4 kbps with automatic fallback
T.30 (PSTN) and T.38 (IP) compliant, real-time fax relay
Tolerant network delay (up to 9 seconds round trip)
Answer tone detection and Relay per T.38
Fax Transparency
Automatic fax bypass (pass-through) to G.711 or NSE bypass mode
Modem
Transparency
Automatic switching to PCM on V.34 or V.90 modem detection
Automatic switching (pass-through) to PCM or NSE bypass mode for
modem signals (V.34 or V.90 modem detection)
Protocols
VoIP Signaling
Protocol
SIP RFC 3261
Communication
Protocols
RTP/RTCP packetization
IP stack (UDP, TCP, and RTP)
Remote Software load (HTTP/HTTPS)
In-Band Signaling
DTMF (TIA 464A)
MF, MF-R1, MFC R2
User-defined Call Progress Tones
Line Signaling
Protocols
Loop start signaling.
Data Functionality
Routing
WAN access through DHCP/PPPoE/L2TP/PPTP
DHCP server, DHCP relay and DHCP client
Multiple IP interfaces for LAN routing - IP interfaces assignment to
different VLANs
Assignment of different VLAN IDs to VoIP and Data traffic.
Routing protocols: Static routing, RIPv1 - RFC 1058, RIPv2 - RFC 2453,
OSPFv2 - RFC 2328, BGPv4 - RFC 1771 and RFC 2858, BGP
Extended Community Attribute for BGP/MPLS VPNs, Policy-based
routing (e.g. DSCP-based and BGP policy routing)
NAT/NAPT
Layer-3 routing
Internal Layer-2 switching
Supported RFC's: RFC 768 UDP, RFC 791 IP, RFC 792 ICMP, RFC
793 TCP, RFC 959 FTP, RFC 2822 Internet Message Format, RFC
1305 NTP, RFC 826 ARP, RFC 2131 DHCP,
RFC 1918 IP
Addressing, RFC 2516 PPPoE, RFC 2663 NAT
Quality of Service
Traffic Classification and Marking, Traffic Scheduling and Shaping
Supported RFC's: IEEE 802.1p Priority Tagging, RFC 1349, RFC 2475,
RFC 2597, RFC 3246
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