Dialogic Gateway DMG2120DTIQ - Quad T1 / E1

Характеристики

The Dialogic® 2000 Media Gateway Series (DMG2000 Gateways) is a set of turnkey appliances that seamlessly merge traditional PSTN technology with IP networks. These economical gateways help consolidate typically separate voice and data networks and provide new and differentiated communication services. Without making radical, disruptive, and expensive upgrades to existing PBX equipment, service providers and enterprises can realize the benefits of a converged voice and data network with these gateways.

Features & Benefits:

Provides an interconnect between legacy PBXs and various IP endpoints
Enables communication between a circuit-switched telephony network and Session Initiated Protocol (SIP) compatible remote devices such as IP voice mail, unified messaging applications, and IP phones

Available in single, dual, and quad density T1/E1 rack mount appliances
Offers a range of product densities to fit the needs of a variety of applications and business sizes

Compatible with a variety of popular PBX manufacturers including Avaya, Mitel, NEC, Nortel, and Siemens
Protects investment in legacy telecommunications equipment and allows a phased migration to IP

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

Supports supplementary services on CAS, QSIG, Euro ISDN, NI2, DMS100, 5ESS protocols, enabling call transfer, call hold, MWI, and call party information
Helps retain key supplementary services in the new IP environment

Seamless interoperability with Dialogic® Host Media Processing (HMP) Software
Provides the option for customers to build enhanced applications on top of base gateway and PBX functions, and make those applications available on legacy handsets

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 DMG2000 Gateways can be installed and configured “plug and play,” reducing the total cost of ownership. Operations, Administration, and Maintenance (OA&M) features such as network alarm events, remote management enabled by a userfriendly web interface along with advanced diagnostics and administration tools make the installation and maintenance of these appliances quick and easy.

The cost of the DMG2000 Gateways makes them a unique and ideal solution for enterprises interested in deploying a variety of applications such as PBX extension, remote office connectivity, long-distance consolidation, call centers, and IP media servers. Available in a 19-inch standard rack mountable chassis, these appliances are also ideal for service providers offering hosted IP-PBX, IP Centrex, and enhanced messaging servers.

Save Time, Money — and Existing PBX Equipment
A large base of enterprises today have legacy PBX equipment installed in their premises. These enterprises want to cut their communications costs by implementing a VoIP solution, but wish to retain their investment in legacy equipment. Because these enterprises have a diverse base of PBX equipment, solution providers need a product that will help them address this wide customer
base with a single, simple solution.

The DMG2000 Gateways have been tested for interoperability with legacy PBXs from vendors such as Alcatel, Avaya, Mitel, NEC, Nortel, and Siemens. This testing lets solution providers focus on customer applications rather than integration efforts with legacy PBXs. In addition to providing IP connectivity, the DMG2000 Gateways support key supplementary services such as call transfer, call forwarding, call hold, message waiting indicator (MWI), and call party information on most T-1/E-1 protocols including CAS, QSIG, Euro ISDN, NI2, DMS100, and 5ESS, enabling customers to retain application- critical PBX functionality in the new VoIP environment.

Advanced Voice Features Provide Superior Caller Experience
The extensive features of the DMG2000 Gateways can help build a reliable, high-quality VoIP application. The gateways provide the interoperability needed for high-quality media streaming with a wide variety of industry-standard IP endpoints by supporting advanced coders including:

• G.711 (packet size 10 ms, 20 ms, and 30 ms)
• G.723.1
• G.729ab
  

Echo cancellation is essential for packet-switched networks to carry voice traffic successfully. The DMG2000 Gateways conform to ITU G.168 echo cancellation with a tail length up to 128 ms. Voice quality is further enhanced with features such as comfort noise generation, silence detection, and adaptive jitter buffering.

The DMG2000 Gateways have QoS features, including type of service (TOS)/IP precedence, and DiffServ, providing a low-latency, high-reliability path for sensitive voice traffic through today’s networks. In addition, the gateways support advanced call progress analysis on all channels.

Dialogic Product	Order Code
DMG2030DTIQ	86-427
DMG2060DTIQ	886-418
DMG2120DTIQ	886-426
DMG2060DTISQ	310-891
DMG2120DTISQ	310-892

TDM Port Density by Model
DMG2030DTI: 1 T1 or 1 E1
DMG2060DTI: 2 T1 or 2 E1
DMG2120DTI: 4 T1 or 4 E1

IP Channel Density by Model
DMG2030DTI: 30
DMG2060DTI: 60
DMG2120DTI: 120

Connectors: RJ-45 jacks

Network Interfaces:
10/100 BaseT Ethernet LAN port
Connector 1 shielded female RJ-45 jack for LAN

Configuration and Management
- Web browser with context-sensitive Help facility
- Telnet
- BOOTP client and TFTP client built-in
- SNMP v1 read-only for alarm reporting

Call Routing - Round Robin via IP load balancing

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

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

Physical Dimensions
Height 1.68 in. (4.27 cm)
Width 19 in. (48.26 cm)
Length 14.2 in. (36.07 cm)
Weight 11.1 lbs (5.03 kg)

Environmental Requirements
Operating temperature +32°F to +122°F (0°C to 40°C)
Storage temperature –4°F to +158°F (–20°C to 70°C)

Protocol Support
Serial - MCI, MD-110, SMDI
T-1 ISDN - 5ESS, DMS100, NI2, QSIG
T-1 CAS - E&M, GroundStart, LoopStart
E-1 - EuroISDN, QSIG
VoIP - Call transfer/call hold/message waiting indicator), SIP per RFC 3261, RTP/RTCP for delivery of voice
FoIP - T.38 FoIP emulating units transcode fax from T.30 fax protocol, supporting V.21, V.27, V.29, and V.17 modulation schemes  to T.38 for transmission over a packet network
Security -  SRTP, HTTPS, TLS

Voice Support
G.711 ?-law and A-law
G.723.1
G.729ab
Silence suppression with comfort noise
Dynamic jitter buffer
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
DiffServ

Reliability/Warranty
Estimated MTBF: Nine years