VideoCentric | The Video Integration Experts

Codian ISDN GW 3500 Series

This is an end of life product – Please contact our sales team for the up to date models.

The Codian IP GW 3500 Series is a gateway for seamless and secure voice and video communication from the Internet to the intranet.


Providing universal access to the rest of the IP world

With the Codian IP GW 3500 Series, an organization can publish a single IP address to serve as a portal to all its video communications users, comparable to the switchboard number for traditional telephone calls. No prior set up is required for new Internet users. They are greeted with either a live operator or auto attendant for professional and efficient call management. Callers can also use the intuitive auto attendant menu to connect directly to common destinations or dial in directly using extension numbers.

Product Total Calls Video Calls
IP GW 3510 10 5
IP GW 3520 20 10
IP GW 3540 40 20


  • Universal Connectivity
    Translation between SIP and H.323 and transcoding between a wide range of video and audio standards ensures connectivity between almost any two IP endpoints. Dual Ethernet ports allow two completely independent IP networks to be connected.
  • IP Clarity
    IP networks including the Internet offer higher bandwidths at lower costs than traditional telephone networks. This extra bandwidth allows you to use higher quality voice and clearer communication.
  • Ease of Use
    Connects all your voice and video IP endpoints and infrastructure to the Internet. Easy integration without the need for a gatekeeper. Dial by phone number, IP address or through the interactive menu. Operator assistance built in to aid call routing. Simple to install and maintain.
  • Robust and Reliable
    Designed from the ground up as network infrastructure, the Codian IP GW 3500 Series is rack mountable with custom non-PC hardware and a secure operating system. Includes comprehensive remote web management, reporting and upgrades.
  • Standards-based and Compatible
    Offers full interoperability with SIP and H.323 endpoints combined with Codian’s proven compatibility with all major vendors.
  • Packet Safe™ Technology
    Works in conjunction with Codian’s unique transcoding architecture to ensure that packet loss anywhere in the network will have minimal impact on the quality of your call and most importantly, that you stay connected.

Codian IP Gateway 3510
Codian IP Gateway 3520
Codian IP Gateway 3540

Endpoints Supported
H.323 voice and video endpoints
SIP voice and video endpoints

Video Standards
H.261, H.263, H.263+, H.263++, H.264

Video Resolution
QCIF, QSIF, CIF, SIF, iCIF, iSIF, 288p, 384p, 400p, 448p, VGA,
4CIF, 4SIF, 480p

Frame Rates
Up to 30 frames or 60 fields per second

Audio Standards
G.711, G.722, G.723.1, G.728, G.729, MPEG-4 AAC-LC,
MPEG-4 AAC-LD, Polycom® Siren14™ / G.722.1 Annex C


H.263 up to 4 Mbps, H.264 up to 2 Mbps

Universal Transcoding and Transrating
Automatic audio / video transcoding and transrating on all calls
Any bandwidth, any resolution, any video or audio codec can be independently used by each caller
Each caller has their own personal encode
Extremely low latency: less than 80 ms

Web User Interface
Complete configuration, control and monitoring of the system and calls

Built-in Gatekeeper
Up to 25 devices can register
Options to extend this to 100 or 300 devices
Register service prefixes, H.323 IDs and E.164 aliases
Round robin calls over common service prefixes for load balancing

Call Routing
IVR / auto attendant
Select endpoints with FECC
Operator assistance
Dial by E.164 address
Translate DTMF to IP address
Digit manipulation
Flexible dial plan

2 x RJ45 Ethernet, 10/100/1000 Mbps full/half duplex, manual or auto sensing
RJ45 serial port
CompactFlash socket
39 status LEDs
Call Features
H.323 or SIP dial in
Standalone call routing
Preconfigured H.323 and SIP endpoints
Options for H.323 gatekeeper & SIP registrar
Widescreen (16:9) support
Far end camera control tunneling using remote control
Audio Features
Built-in auto attendant voice prompts

System Management
Management via embedded web server
RS-232 for local control and diagnostics
Syslog for diagnostics
Configurable event logs and full H.323 and SIP decoding
Configuration backup to network
Secure upgrades through Ethernet or CompactFlash

Quality of Service
Configurable DSCP or TOS/IP precedence
Network Resilience
Packet Safe™ technology provides intelligent downspeeding, packet pacing and packet loss concealment to ensure optimum video and audio quality
Dynamic jitter buffering

Security Features
Three levels of access rights and privileges for users
Separate dial plans for each network port
Secure non-PC hardware and operating system
Application level gateway with no IP packet forwarding

2 x RJ45 Ethernet, 10/100/1000 Mbps full/half duplex, manual or auto sensing
RJ45 serial port
CompactFlash socket
39 status LEDs

Environmental Data
Operating temperature 0°C to 35°C ambient
Relative humidity below 95% (non condensing)
Physical Dimensions
Height 1.73”, 44 mm (1U), Width 17.2”, 437 mm
Depth 12.3”, 312 mm, Weight 9 lbs, 4kg
19” rack mountable (kit supplied) or standalone
Power 100-240 VAC, 50/60Hz
110W max power consumption

Approvals and Compliance
European safety: EN 60950-1:2001
USA safety: UL 60950-1 first Edition
Canada safety: CSA 60950-1-03
CB Scheme certificate, CE Marked
EMC: EN55022 class A, EN61000-3-2, EN61000-3-3,
EN55024: EN61000-4-2,-3,-4,-5,-6,-11,
FCC Part 15 class A, VCCI class A, AS/NZS 3548 (C-Tick)
CCC Approved: GB4943-2001, GB9254-1998,
NAL Certificate (China)
RoHS compliant
Call Now