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Dialogic 4000 Media Gateway DMG4008LSW

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List Price: $4,526.00

  • Manufacturer: Dialogic
  • Model: 306-374
  • UPC:
  • Warranty: 1 year
  • Availability: ships within 5 business days
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Dialogic 4000 Media Gateway DMG4008LSW

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

Dialogic 4000 Media Gateway DMG4008LSW Specifications

Technical Specifications

Ports per unit

DMG4008LSW Media Gateway: 8-port Analog (8 channels)
DMG4008BRI Media Gateway: 4-port ISDN BRI (8 channels)
DMG4030DTI Media Gateway: 1-port T1/E1 (24/30 channels)
DMG4060DTI Media Gateway: 2-port T1/E1 (48/60 channels)
DMG4120DTI Media Gateway: 4-port T1/E1 (96/120 channels)

Network interface

2 x 10/100/1000 BaseT Ethernet LAN port with load balancing


Protocol support

E1 ISDN: ETSI-DSS1 (EuroISDN), INS-1500 (Japan), QSIG
E1 CAS: MFR2
T1 ISDN: NI-1, 4ESS, 5ESS, DMS100, QSIG
T1 CAS: RBS


VoIP call control
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

Dialogic 4000 Media Gateway DMG4008LSW Resources