VX 900 Voice Exchange

Tech Specs
VX 900 Voice Exchange
  • Interface Cards
    • 1, 2 and 4 port T1/E1
    • 8 port FXS
    • 4 port sync serial (both port and network sides) 
  • Secure Call Support
    • V.150 UMR call detection, relay and/or bypass
    • FNBDT/SCIP call detection and relay
    • Up to 10 secure calls over a 64k IP link(2.4kbps per call)
    • Up to 200 simultaneous compressed secure calls per node
  • Serial Interface
    • IP over serial (HDLC and Cisco HDLC)
    • SAToP (Structure-Agnostic TDM over Packet)
    • DTE and DCE modes
    • Crypto re-synch
    • Both access and network side support
    • V.35, RS-449 and RS-530 interfaces
  • VoIP Signaling
    • SIP
    • H.323
    • BSP (BESTflow Signaling Protocol)
  • SIP
    • Session Border Controller
    • Transport Layer Security (TLS) encryption
    • MD5 digest authentication
    • SIP registrar for basic SIP IP-PBX
    • Call Admission control with Static Local session control and management
    • RFC2833 and in-band DTMF signaling over RTP
    • Extends central SIP services to the non-SIP devices
  • TDM Signaling
    • T1 CAS (E&M, DTMF, MF, Loopstart, R1)
    • E1 CAS (MFCR2)
    • ISDN – AT&T 4ESS, Nortel DMS-100, Euro ISDN (ETSI 300-102)
    • QSIG, NTT (Japan), Harris 20/20, AT&T 5ESS, CoreNet
    • National ISDN-2 (NI-2)

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