The Quintum ASM400 Survivable VoIP Switches provide local IP endpoint registration and call routing functinoality in the event that communication with the central proxy is lost. The Tenor-S AS4200 connects to the data network through a 10/100 Ethernet interface, the voice network through either a PBX or phone, and the public switched telephone network (PSTN). The Tenor employs its patented SelectNet technology to monitor calls for jitter, packet loss, and latency, and can transparently switch mid-call to the voice network whenever conditions demand. Four Channel VoIP MultiPath Switch with four analog FXS, four analog FXO ports, and 10/100 Mbps Ethernet WAN port. Supports a network of up to four Tenor switches without a gatekeeper Supports up to two simultaneous voice calls over the IP network. Includes the following features: MultiPath architecture, SelectNet QoS based autoswitching. TECHNICAL SPECIFICATIONS Telephony Specifications • Voice algorithms: G.723.1a, G.729ab, G.711 • Auto codec negotiation • Fax Support: Group III at 2.4, 4.8, 7.2, 9.6, 14.4 Kbps, using industry standard T.38; Super G3 compatible up to 33.6 Kbps • Modem over IP • Choice of 2 or 4 FXS and/or FXO configurations • Standard RJ-11 connectors • Loop Start, Reverse Battery, Battery Disconnect • Maximum Call Rate: 900 calls/hour IP Network Specifications • LAN Interface: Fast Ethernet port (10/100 Base-T) • Standard RJ-45 Interface (IEEE 802.3) for 10 Base-T or 100 Base-T connections • DHCP Client • QoS Support: IP TOS, DiffServ • Coding: A law, ì law • Enhanced (Carrier Grade) Echo Cancellation: ITU Rec. G168, up to 128 msec tailsize VoIP Network Specifications • H.323 v.3 Gateway and Integrated Gatekeeper • SIP User Agent (RFC3261 compliant endpoint) • SIP RFC2833 for DTMF Signaling • SIP Supplementary Services • Message Waiting Indicator • SIP Refer Method support • IVR/RADIUS server support for AAA with integrated multi-lingual IVR • Adaptive Voice Activity Detection (VAD) with Comfort Noise Generation (CNG) • Adaptive Jitter Buffer • Packet Loss Compensation • NATAccess™ • Security: IP Filtering • Up to 4 simultaneous VoIP calls • Support for DNS Addressing Configuration / Management • Quintum Tenor Configuration Manager (GUI) for configuration of remote individual Tenors. • Quintum Tenor Monitor (GUI) for alarm monitoring, call monitoring and CDR monitoring • SNMP-v2 Agent • Command Line Interface