Designed for the Federal market, the Ribbon's VX 900 Voice Exchange is the industry's first fully integrated multi-service voice switch with Any-to-Any gateway functionality, creating a next-generation solution for enterprise VoIP enablement. The award-winning VX 900 platform provides the most powerful, most complete, Voice over Internet Protocol (VoIP) solution. The VX 900 platform supports analog, digital, and native IP voice, as well as port and trunk side serial data, making it a compelling solution for any government agency looking to deploy IP-based voice and data solutions.

The product line combines the functionality of a media gateway, signaling control point, H.323/SIP inter-working device, media server and voice/data mux in a single chassis. As a port side interface, the optional serial data card enables legacy equipment to take advantage of the IP backbone, realizing full convergence.

Specifications

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)

Features & Benefits

When your network experiences slow traffic flow and packet loss, secure VoIP calls stay connected because the VX 900 can withstand significant packet loss and jitter, and still keep the calls connected. SCIP calls through the VX 900 can withstand complete network failure for up to 10 seconds without failing the call. Secure calls stay connected in a degraded environment.
The VX 900 platform supports analog, digital, and native IP voice, as well as port and trunk side serial data, saving you money as you deploy IP-based voice and data solutions. The VX 900 combines the functionality of a media gateway, signaling control point, H.323/SIP inter-working device, media server and voice/data mux in a single chassis.
The VX 900 integrates the key elements of a VoIP network into a single platform by implementing a distributed architecture. Each VX 900 node acts as an independent intelligent processing element. There is no reliance on centralized servers for routing and management decisions, so a VX 900 network has no single point of failure. A distributed architecture also results in lower call set-up times and allows the network to grow to any size without a detrimental effect on call performance. Each node essentially adds processing power to the network.