Dialogic® IMG 2020

Integrated Media Gateway 
For Any-to-Any Connectivity

Versatile Dialogic Gateways
Find out which one is right for your application

The Dialogic® IMG 2020 Integrated Media Gateway enables interworking between IP and PSTN networks via high-density optical, telephony, and Ethernet connections in a compact 1U form factor. It transforms media and signaling to support efficient and reliable voice, fax and multimedia sessions for mobile and cloud-based applications.   The IMG 2020 secures sessions across IP and mixed network boundaries in support of service level agreements. 

Along with providing a broad range of scalability in a small footprint, the IMG 2020 handles signaling and media in a single carrier-grade chassis and can deliver SIP services into SS7, SIGTRAN, PRI, and SIP-I networks. The IMG 2020 also manages sessions through capabilities that include SIP mediation, SIP-to-H.323 interworking, SIP back-to-back user agent (B2BUA), and IP-to-IP transcoding of voice and video for network access applications.   

High Density and Versatility

With its high density and versatility, the IMG 2020 can help wireless and wireline service providers add new Value-Added Services (VAS) quickly, and provide a clear migration path to an all-IP network. The IMG 2020 is also an excellent option for retail, wholesale, and enhanced service VoIP deployments, as well as contact centers and mobile VAS.

The IMG 2020 also offers energy efficiency and hardware components where hazardous substances have been minimized, which can help operators and contact centers seeking to fulfill "green" initiatives.

Easy Management and Fast Maintenance

1U high-density design, element management system, and software licensing that allows in-service capacity expansion make the BorderNet 2020 IMG easy to manage and scale. Its NEBS-3 carrier-ready design uses independent network interfaces to separate transport, signaling, and OAM&P for reliability and enhanced service availability.

Fast maintenance features, such as hot-swappable power supplies, field-replaceable motherboard trays, and graceful upgrades address the flexibility and ease of operation that carriers need and increases reliability in the field.

The IMG 2020 also features the Dialogic® Programmable Protocol Language (PPL), which allows rapid implementation of SS7 ISUP variants and other signaling changes.

Features Benefits

Supports up to 2,016 channels of SS7 signaling, call routing, call translation, and IP transcoding in a single 1U chassis

Can significantly reduce capital and operating expenses

Simultaneous support for SS7 ISUP, SIGTRAN M3UA, and PRI signaling interworking with SIP and SIP-I

Provides a flexible, cost-effective platform that can evolve from a TDM-IP to an all-IP environment

Multimedia border element capabilities, including SIP mediation, topology hiding, and media transcoding
Facilitates efficient operations between incompatible network elements in a service provider infrastructure
Field replaceable components, such as power supplies, optical modules, and motherboard tray

Supports ease of operation and maintenance coupled with increased reliability

NEBS-3 carrier-ready design uses independent network interfaces to separate transport, signaling, and OAM&P

Provides reliable throughput and enhanced service availability

Software license upgrades

Scales easily in-service as capacity requirements increase

Works with load balancers

Optimizes distribution of SIP traffic and improves scalability and fault tolerance

Technical Specifications  
Routing Features

  • Call routing and translation based on ANI, DNIS, Generic Number (only translation is supported), Nature of Address (NOA)
  • Algorithms include percentage-based routing and disposition by Cause Code
  • Pre- and post-routing digit translations with wildcard support
  • Multiple routing algorithms per trunk group or groups of trunks for IP-to-TDM and IP-to-IP and both A-law and µ-law conversions
  • Pre-call announcement (branding)
IP Bearer Features

  • Coder support: AMR-NB, AMR-WB*, G.711, G.722, G.723.1, G.726, G.729 A/B, GSM-FR, GSM-EFR, iLBC, RFC 4040 Clear Channel
  • Video support: Transcoding, transrating, and pass-through of CIF/QCIF resolutions for H.263, H.264, and MPEG-4
  • Echo cancellation: G.168 128 ms tail length
  • Voice activity detection and packet loss concealment
  • Comfort noise generation
  • T.38 real-time fax
  • Fax/modem bypass
  • Digit transmission via RFC 2833 (SIP)
  • Hosted NAT
  • VLAN tagging
  • Secure RTP (SRTP) to RTP interworking (SIP audio media only)

*Using the AMR-WB resource in connection with this Dialogic® product does not grant the right to practice the AMR-WB standard. To seek a patent license agreement to practice the standard, contact the VoiceAge Corporation at  www.voiceage.com/licensing.php.


  • Web User Interface (WebUI) supports configuration via browser
  • Multi-node Element Management System - Enables monitoring and provisioning of up to six (6) nodes via web browser
  • Centralized routing engine simultaneously configures gateways in the network
  • Radius (billing, authentication, prepaid)
  • Local time zone support and Network Time Protocol (NTP)
  • SNMP MIBs: MIB-2, Interface, Alarms, Private Call Reporting and System Statistics, Private Alarms, DS0, DS1, DS3, and OC3
Power Requirements

AC Power Supply Range

  • 100 - 132 VAC (115 VAC nominal)
  • 180 - 264 VAC (230 VAC nominal)
DC Power Supply Range
  • -36 to -60 VDC (-48 VDC nominal)
The power supply will operate at any frequency between 47 Hz and 63 Hz

Power Consumption





No DSP Modules

90 Watts

120 Watts

1 DSP Module

110 Watts

145 Watts

2 DSP Modules

130 Watts

170 Watts

3 DSP Modules
150 Watts
195 Watts
4 DSP Modules
170 Watts
220 Watts

Operating temperature range
  • 0 to +50 °C, 95% relative humidity non-condensing
Storage temperature range
  • -10 to +75 °C, 95% relative humidity non-condensing
Physical Specifications

  • 1.72 in (43.7 mm) high
  • 16.97 in (431 mm) wide
  • 19.67 in (499.6 mm) deep
  • 24 lb (10.9 kg)
Field replaceable item
  • Fan filter (available in 10-packs)
  • Power supplies
  • OC-3/STM-1 optical module
  • Motherboard tray
  • Up to four (4) DSP modules
  • SS7 signaling: 1+1 active/standby redundancy
  • Smart IP probing
  • Automated failover (Ethernet links)
  • Failover via automatic protection switching (optical links)
  • Graceful busy out per trunk group
  • Virtual IP addresses for SIP load balancing (via third-party server)
  • Call release due to media inactivity timeouts
  • Dual, hot swappable, AC/DC power supplies

  • 128 - 768 TDM channels per 1U shelf with Rear I/O Type 1 (scalable from 4 E1/5 T1 to 24 E1/T1)
  • 672 - 2016 TDM channels per 1U shelf with Rear I/O Type 2 (supports either Optical 0C3 interface or 3 DS3s)
  • 100 - 4500 VoIP channels per 1U shelf
  • 50 to 2250 SBC voice sessions
  • 5 - 430 SBC video transcoding sessions per 1U shelf
I/O Interfaces - Rear I/O Type 1 - T1/E1  
Telephony - T1 and E1
  •  24 T1/E1 for timing (BITS clock), signaling and bearer traffic (T1 - 100 ohms and E1 - 120 ohms)
Clock Sync
  •  Stratum-3 via T1/E1 interface
I/O Interfaces - Rear I/O Type 2 - High Density

Telephony - T1 and E1, OC3/STM-1, and DS3
  • 1 to 3 DS3 + 4 - T1/E1 for timing (BITS clock), signaling and bearer traffic
  • 1 OC3/STM-1 with Automatic Protection Switching (APS) + 4 T1/E1 for timing (BITS clock),
  • signaling, and bearer traffic (T1-100 ohms and E1-120 ohms)
Clock Sync
  •  Stratum-3 via T1/E1 interface or OC-3/STM-1 interface
IP Interfaces
  • Dual redundant 100/1000 Base-T Ethernet for control; 2 - 100/1000 Base-T Ethernet Aux ports (reserved for later use)
  • 4 - 100/1000 Base-T Ethernet for VoIP payload and signaling (additional 4 reserved for later use)
Optical Transceiver
  • Hot plug LC connector type SFP modules (1310 nm 15 KM)
TDM Signaling Protocols

  • ISDN PRI (FAS and NFAS): NI2, Euro ISDN, DMS 250, 5ESS, JATE/Japan INS-NET1500, ISDN Net 5
  • Q.699 ISDN to SS7 mapping
  • ISDN/SS7 UUI mapping to SIP
  • SS7/C7 ISUP: ITU and ANSI variants supported through the Dialogic® Programmable Protocol Language (PPL)
  • SS7 TCAP for message-waiting-indication and Caller Name (CNAM) service
  • 64 SS7 links in standalone configuration
  • 128 SS7 links in redundant configuration
  • A-links and F-Links supported
  • E1 to DS3 mapping for third-party multiplexor compatibility
  • ISDN call transfer and bridging via Explicit Call Transfer, Two B Channel Transfer, and Release Link Trunking (initiated via SIP REFER)
  • Delayed ANM for ISUP (triggered by third-party SIP call transfers)
  • ISDN Multilevel Precedence and Preemption (MLPP)
IP Protocols  
  • H.323 v2
  • H.323 RAS, H.245, and H.225
  • H.323 Tunneling
  • H.246 Annex C - ISDN User Part Function - H.225.0 Interworking
Core SIP Specifications
  • RFC 3261 SIP Basic
  • RFC 3262 SIP PRACK
  • RFC 3263 Locating SIP servers for DNS lookup SRV and A records
  • RFC 3264 SDP Offer/Answer Model
  • RFC 3265 SIP Subscribe/Notify
Notable SIP Extensions (Partial List)
  • RFC 3372 SIP for Telephones (SIP-T)
  • RFC 3372 SIP for Telephones (SIP-T)
  • RFC 3398 ISUP/SIP Mapping
  • RFC 3711 SRTP (for SIP)
  • Tel URI - RFC 3966
  • RFC 6157 - IPv6 Transition in SIP
  • ITU-T Q.1912.5 - IP and ISUP interworking
  • RFC 3332 - M3UA Adaption Layer
  • M3UA Application Server
  • M3UA Signaling Gateway for TCAP/SCCP
  • Adaptive jitter buffer
  • Packet loss compensation
  • Configurable Type of Service (ToS) fields for packet prioritization and routing
Approvals and Compliance

  • For information about RoHS compliance and global approvals, visit www.dialogic.com/declarations or contact your Dialogic sales representative.
  • For information about RoHS compliance visit www.dialogic.com/rohs or contact your Dialogic sales representative.
  • The BorderNet 2020 SBC may be approved as Equipment Type MMG.

  • FCC Part 15, ICES-003
European Union
  • EN55022: 2006/A1:2007, EN55024: 1998/A1:2001/A2:2003, EN 300 386 V1.4.1 (2008)
Australia/New Zealand
  • AS/NZS CISPR 22:2009
  • VCCI
  • UL/CSA 60950-1 – 2nd Edition (2007)
European Union
  • EN60950-1:2006/A11:2009/A12:2011
Australia/New Zealand
  • AS/NZS 60950.1:2003
CB Scheme
  • IEC 60950-1 2nd Edition (2005)
Telecom Approvals

  • FCC Part 68/IC CS-03
European Union
  • TBR 4, 12, 13
Australia/New Zealand
  • AS/ACIF S-016:2001 and AS/ACIF S-038:2001


Warranty information at www.dialogic.com/warranties
Estimated MTBF per Telcordia Method 1:

With Dual Redundant AC or DC Power Supplies

 Rear I/O Type 1 - T1/E1

No DSP Modules

148,000 hours

1 DSP Module

121,000 hours

2 DSP Modules

103,000 hours

3 DSP Modules

 89,000 hours

4 DSP Modules  79,000 hours

Rear I/O Type - High Density: DS-3 OC-3 I/O

No DSP Modules

162,000 hours

1 DSP Module

130,000 hours

2 DSP Modules

109,000 hours

3 DSP Modules

 94,000 hours

4 DSP Modules
 83,000 hours


Data Sheets

  • The Dialogic® IMG 2020 Integrated Media Gateway uniquely combines gateway and all-IP functionality to provide scalable and secure signaling interworking and media transcoding for IP-to-IP and IP-to-TDM, any-to-any connectivity in a compact 1U form factor.


  • Find out how Dialogic and BroadSoft can provide advanced calling features, seamless, secure any-to-any connectivity, and comprehensive systems integration and support services to enable service providers to deliver innovative solutions to wireless and fixed business and residential customers.
  • The transformation from traditional communications to VoIP is well underway, but there is still a large installed base of PSTN equipment across service provider and enterprise networks. Gateways can smooth the transition to IP networks and bridge the gap between legacy and next generation technology requirements. Find out how Dialogic’s modern media gateways enable service providers to deliver innovative voice and video solutions, while allowing them to leverage their sizeable investments in existing communications infrastructure.

  • Overview of the different services provided.

Technology Brief

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