Technical data

Technical Data HG 3570/3575
EN4442EN00EN_0001
© 2007 Siemens AG
Siemens
45
8 Technical Data for HG 3500/3575
LAN Interface
10/100-Base-T Fast Ethernet interface to IEEE 802.3u
Autonegotiation, 10/100 Mbps, adjustable half/full duplex mode
IEEE 802.3 / DIX Ethernet II Standard Framing
Priority tagging (VLAN-TAG) to IEEE 802.1 p/q - optional
(fixed assignment of priority to traffic types)
IP Stack
IP Version 4
DiffServ prioritization to IETF RFC 2474 - optional (CodePoints freely adjustable)
Supports ICMP router redirection
TCP for signaling transport
UDP for transport of voice data to RTP/RTCP (IETF RFC 1889)
Transport Capacity for Voice
Audio Codecs (circuit-specific adjustment)
G.711 (PCM) with support for Annex 1 (Comfort Noise with Lost Packets)
and Annex 2 (Voice Activity Detection with Comfort Noise Generation)
Sample sizes: 20, 30 or 60 ms
G.729A (compression at 8 Kbps) and G.729AB (with Voice Activity Detection)
Sample sizes: 20, 40 or 60 ms
G.723 (compression at 5,6 Kbps and 6,4 Kbps)
Sample sizes: 30, 60 or 90 ms
Echo Cancellation (circuit-specific adjustment)
Line echo cancellation to G.168 for 32 ms echo tail length
BD Type Part Number Voice Channels Remark
STMI2 Q2316-X 60 HW from HiPath 4000 V2.0
STMI2 Q2316-X10 120 HW from HiPath 4000 V2.0
STMI4 Q2324-X500 60 HW from HiPath 4000 V4
STMI4 Q2324-X510 120 HW from HiPath 4000 V4