Dialogic Gateway DMG1008LSW - 8 port FXO

The Dialogic® 1000 Media Gateway Series (DMG1000 Gateways) allows for a well-planned, phased migration to an IP network, making the gateways a smart solution for enterprises looking to enhance their legacy PBX equipment with new VoIP access and applications. Connected between a PBX or a digital handset and a LAN or WAN, the DMG1000 Gateways convert proprietary digital PBX messages into a format suitable for transmission over standard IP networks.

Features & Benefits

Suitable for small to medium enterprises and easy to install, configure, and maintain, Compatible with a variety of popular PBX manufacturers including Alcatel, Avaya, Ericsson, Fujitsu, Mitel, NEC, Nortel, and Siemens
Protects investment in legacy telecommunications equipment and allows a controlled migration to IP technology.

Designed, developed, and tested in Dialogic’s state-of-the-art PBX lab and optimized for use in an Enterprise environment
Ideally suited for Enterprise Unified Messaging applications (tested and certified with Microsoft® Exchange Server UM)

Support for IP load balancing and IP fault tolerance
Allows the ability for inbound (TDM-to-IP) calls to round-robin between available media servers and automatically routes calls away from unresponsive media or proxy servers

Seamless interoperability with Dialogic® HMP Software
Provides the options for customers to build enhanced applications on top of base gateway and PBX functions

Supports configuration via serial, telnet, and a web browser including context-sensitive help
Easy to install, configure, debug, and maintain

IP security features include TLS, SRTP, and HTTPS
Enables secure communications for SIP messages via TLS, for media stream via SRTP, and for web interface via HTTPS

The DMG1000 Gateways each contain eight digital PBX emulation interfaces and a 10/100 BaseT Ethernet connection for connecting to a LAN. An analog loop start unit designed for voice mail and unified messaging applications is also available to connect to PBXs that do not have an appropriate digital interface. The analog loop start unit supports integration via in-band signaling (DTMF or FSK) or serial protocols (SMDI, MCI, and MD-110).

The DMG1000 Gateways provide a simple, costeffective transition to voice and data convergence for enterprises with PBXs. Connected externally, they offer an IP solution that works with current legacy equipment. They support SIP-based applications as well as T.38 for fax transmissions over IP (FoIP).

Gateway unit features include:

• Voice over Internet Protocol (VoIP) – Supports SIP per RFC 3261. Uses Real-time Transport Protocol/Real- Time Control Protocol (RTP/RTCP) for delivery of voice over the LAN or WAN
• IP security — Supports TLS for SIP messages, SRTP for media stream, and HTTPS for web interface
• Enhanced voice processing – Supports a variety of compression algorithms, including G.711 A-law and ?-law, G.723.1, and  G.729AB
• T.38 Fax over Internet Protocol (FoIP) – Emulation units transcode fax from T.30 fax protocol, supporting V.17, V.21, V.27, and V.29 modulation schemes, to T.38 for transmission over a packet network
• Hot swap – Allows gateway units to be added or removed without affecting other gateway units
• Web server interface – Each gateway unit is delivered with a web server interface, allowing configuration and software upgrades via a web browser

Configurations:

The DMG1000 Gateways can be used to connect IP telephones to a legacy PBX, integrate network- hosted applications with the PBX, extend the PBX to branch offices, and integrate various voice and call processing capabilities in an enterprise LAN or WAN environment. Using exclusive PBX network interfaces (emulating), these media gateway appliances provide exceptional IP to PBX integration capabilities to protect an investment in legacy telecom equipment.

PBX Interface
Number of ports:  4 and 8 port analog units, and 8 port Digital PBX emulation units, Use multiple gateway units for higher port counts
Connectors: 8 shielded female RJ-45 jacks

Network Interface
Connector: 10/100 Base-T Ethernet LAN port, 1 shielded female RJ-45 jack for LAN

VoIP Protocols
- SIP per RFC 3261
- RTP/RTCP for delivery of voice

FoIP Protocol
T.38 FoIP - Emulation units transcode fax from T.30 fax protocol, supporting V.17, V.21, V.27, and V.29 modulation schemes, to T.38 for transmission over a packet network

Voice Support
- G.711 ?-Law and A-Law, G.723.1, G.729AB
- Silence suppression with comfort noise
- G.168 automatic echo cancellation
- Call Progress Analysis (CPA), including Positive Voice Detection, Positive Answering Machine Detection (PAMD), DTMF detection, and fax tone detection

Quality of Service
Type of Service (ToS)
IP precedence

Configuration and Management
SNMP v1- Read-only for alarm reporting
Web GUI - With context-sensitive Help facility
Telnet
BOOTP client and TFTP client - Built-in

Call Routing
- User configuration list of VoIP endpoints
- IP load balancing
- IP fault tolerance
- Supports configuration of a backup SIP proxy server

IP Security
- TLS for SIP messages
- SRTP for media stream
- HTTPS for web interface

Power Requirements
Line voltage: 90 VAC to 264 VAC
Frequency: 47 Hz to 63 Hz

Physical Dimensions
Length 10 in. (25.4 cm)
Width 9.5 in. (24.1 cm)
Height 2.1 in. (5.3 cm)
Weight Approximately 2.5 lbs. (1.13 kg)

Environmental Requirements
Operating temperature: 32F to 122F (0C to 40C)
Non-operating temperature: –4F to 158F (–20C to 70C)

Reliability/Warranty
Estimated MTBF: Five years