VoIP Media Gateway ALCATEL ALE IP Media Gateway GD4/2xMR3 150W with 48VDC Power Supply (3BA01025AV)

ALCATEL ALE IP Media Gateway GD4/2xMR3 150W with 48VDC power supply is a VoIP media gateway designed to perform media conversion and signalling interworking between packet-switched IP networks and legacy telephony interfaces. The unit contains two MR3 interface modules and supports up to 150W power delivery, supplied with a 48VDC power module. It is intended for deployment at enterprise sites, small and medium-sized business locations or service provider edges where integration of legacy TDM or PRI trunks into IP telephony environments is required.

Advantages

This media gateway enables protocol and media translation between IP telephony systems and traditional telephony trunks, allowing continuity of investment in existing PBX and PRI infrastructures while migrating voice services to IP. With its dual MR3 modules, the device supports multiple interface types and flexible channel mapping. The included 48VDC power supply and the 150W power capacity provide a stable power source suitable for typical gateway loads in rack or cabinet deployments.

Suitable for

• Integrating legacy PBX or PRI trunks into IP-based telephony networks
• Enterprise or SMB VoIP migration projects requiring media and signalling interworking
• Service provider edge deployments where TDM-to-IP conversion is needed
• Environments requiring modular interface options via MR3 modules

When it may not be suitable

This gateway is focused on media conversion and signalling interworking rather than acting as a full-featured call control server. Organizations seeking a turnkey IP telephony platform with built-in PBX features, user management, or advanced session routing should consider a separate call control solution. Also, if your deployment requires power redundancy with AC-internal redundant supplies or specific form-factor constraints, verify compatibility with your site power and mounting standards.

Key specifications

• Function: VoIP media gateway providing TDM-to-IP media conversion and signalling interworking
• Interface modules: Two MR3 modular slots populated (dual MR3 configuration)
• Power capacity: 150W total power provision
• Power supply: Supplied 48VDC external/internal power module
• Deployment locations: Designed for enterprise, SMB, and service provider edge usage

How to use

Install the gateway in a suitable rack or cabinet and connect the 48VDC power supply according to site electrical standards. Populate and configure the MR3 modules as required for the legacy trunk types in your installation (for example PRI/E1/T1 or analog if supported by MR3 modules). Configure IP network parameters and signalling profiles so the gateway can interwork with your IP call control servers or SIP proxy. Map channels and dial-plan translations to ensure seamless call routing between TDM trunks and IP endpoints. Monitor status and logs during cutover to verify call quality and signaling behaviour.

What to consider before purchase

• Confirm that the MR3 module types and counts match the legacy trunk interfaces you need (PRI/E1/T1, analog, etc.).
• Verify that 150W power capacity and the 48VDC power supply meet your module and site power requirements.
• Ensure compatibility with your IP call control platform and signaling protocols (SIP, H.248/Megaco, etc.).
• Check physical dimensions, rack-mount requirements and environmental specifications for your equipment room.

Usage recommendations

For deployments migrating multiple TDM trunks, plan a staged cutover and perform interoperability tests between the gateway and your IP call control system. Keep firmware updated and document channel mappings and signalling translations to simplify maintenance and troubleshooting.