The manufacturer of this item has mandated a minimum price at which we may advertise the product. To see our price, please login to your account or contact a sales representative.
Clearance items can be either customer returns in "like-new" condition (Open Box Items), unused inventory stock rotation, or manufacturer refurbished. All items are tested, quality assured, fully functional, and carry a full 90 day manufacturer's warranty.
The Dialogic® 4000 Media Gateway Series (DMG4000 Gateways) is a set of
integrated systems designed to connect Microsoft® Office Communications
Server 2007 R2 to existing PBX systems and PSTN networks. Based on a
standard rack-mount server running the Windows® Server 2008 x64
operating system, the Dialogic® 4000 Media Gateways are basic hybrid
media gateways which are designed, and certified, for the Microsoft®
Office Communications Server 2007 R2 and therefore include the role of
Mediation Server, which is Microsoft’s technology providing PSTN and PBX
interoperability, high-fidelity VoIP, and security
The Dialogic® 4000 Media Gateways have a familiar user interface, which
minimizes Total Cost of Ownership (TCO) by reducing the need for
operational and administrative training and special maintenance. In
addition, the DMG4000 Gateways keep the number of devices needed to
support Office Communications Server 2007 R2 to a minimum by integrating
the Mediation Server into a gateway, reducing hardware maintenance.
The Dialogic® 4000 Media Gateways contain field-proven Dialogic®
Diva® boards and Dialogic®
Diva® SIPcontrol™ Software in addition to Mediation Server software. These elements are integrated in a rugged, compact 1U Intel IP
Network Server NSW1U, which features a high-performance 64-bit
Dual-Core Intel Xeon processor 5100 series, resulting in a system that
can be installed easily in a standard data center rack. The Dialogic®
4000 Media Gateways also offer dual Gigabit Ethernet interfaces for IP
network connection. They can be configured to support up to 120 channels
of unified communications traffic between legacy networks and an IP
network hosting Office Communications Server 2007 R2
Session Initiation Protocol (SIP), RFC 3261 Configurable
transport layer for SIP, UDP, and TCP Session Description Protocol
(SDP), RFC 2327 NOTIFY (RFC 3265), REFER (RFC 3515), 302 REDIRECT,
DIVERSION HEADER Basic call with far-end and near-end disconnect Microsoft®
SIP extensions, compatible with both Microsoft® Exchange UM and Microsoft®
Office Communications Server 2007 R2
Supplementary
services
Numbering
services (abstracted as Called Party Number, Calling Party Number/CLIP, and
Redirecting Number) Call hold/retrieve Call diversion Unattended,
blind transfer Attended transfer with consultation call Message
waiting activation/deactivation
FoIP
services (depending on installed Fax license)
Default: 12 channel of V.17 fax (14.4 kbps) Optional: Up
to 120 channel of V.34 fax (33.6 kbps) T.30 Fax Group 3 up to 33.6
kbps using T.38 real-time FoIP Fax compression MH, MR, MMR Error
Correction Mode (ECM) Clear Channel Fax
Tone
processing features
DTMF generation and
recognition (in-band) DTMF relay, RFC 2833
Media
streaming
IP Real-time Transport Protocol
(RTP) RTP dynamic payload audio/telephony event RTP profile name
RTP/AVP TDM-side fax tone detection via RTP event (RFC 2833) Echo
canceller with up to 256 ms echo tail G.711 coder, 64 kbps (64 kbps,
A-law, μ-law)
Physical
Dimensions
Height: 1.70
in. (4.32 cm) Width: 16.93 in. (43.0 cm) Length: 20.0 in. (50.8
cm)
Power supply
90 VAC to 264 VAC 450 W Power Factor
Corrected (EN61000-3-2) Two (2) redundant power supplies included
Mediation Server
Globally Routable User Agents URI SIP
over mutual TLS SRTP on Communications Server RT Audio on
Communications Server Interactive Connectivity Establishment (ICE)
support
