VoIP ADSL modem

VoIP ADSL modem Description

Features

ADSL Part Embedded ITU-T G.922.1(G.dmt) & G.922.2(G.lite) & T1.413 compliant ADSL Tranceiver and AFE with Annex A & C supported (Annex B is under development) Embedded High Performance MIPS32 CPU High Performance ATM SAR for Enhanced ATM VC Management and QoS RFC 1483 LLC Encapsulation over AAL5 Downstream Link : 8/12 Mbps, Upstream Lin : 1 Mbps PPPoE (PPP over Ethernet) / PPPoA(PPP over ATM) supported VoIP Part VoIP Protocols IETF MGCP 1.0 supported PacketCable MGCP/NCS 1.0 supported SIP (RFC2543bis-04, RFC3261) supported VoIP protocol can be selected by software downloading from network At the particular time, only one protocol can be loaded into the modem Voice CODEC G.711, G.729A, G.723.1 G.168 Echo Cancellation (4~32ms) DTMF Relay Silence Suppression Packetization Period (10 ~ 40ms) Jitter Buffer Control Phone Interface : One RJ-11 port : ICS-A201 Two RJ-11 ports : ICS-A202 (can be developed if required) FAX FAX supported via G.711 protocol T.38 FAX relay (can be developed if required) Other Functions 2-Line CODEC with 120MHz (240MIPS) DSP QoS : TOS & IEEE802.1p(packet prioritization) supported Voice Activity Detection (VAD) Comport Noise Generation (CNG) CLASS 5 service features Call Conferencing (3 way calling) Caller ID notification Call Forwarding Call Waiting Pulse Metering Vocoders

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