Specifications
Chapter 1 - Installation Overview
4
Mediatrix 4100
Overview
The Mediatrix 4100 is a standalone Internet telephony access device that connects to virtually any business
telephone system supporting standard analog lines.
The Mediatrix 4100 offers two Ethernet connectors switches enabling to establish two connections between
conventional analog telephones or Group 3 fax machines and either a WAN, a LAN or a personal computer.
This version of the Mediatrix 4100 can use either one of the following signalling protocols:
the Media Gateway Control Protocol (MGCP), which is a protocol for controlling Voice over IP
(VoIP) Gateways from intelligent external call control elements.
the Network-based Call Signalling (NCS) protocol, which is a profile of the MGCP protocol.
You can switch from one signalling protocol to the other as described in “
Switching Protocols” on page 39.
About the Mediatrix 4100
The Mediatrix 4100:
Merges voice and data traffic onto a single unified network. Carrying telephone traffic over data
networks uses less bandwidth (as compared to telephone trunks), resulting in a more cost-
effective network solution.
Easily integrates with existing telephone equipment. It converts any conventional analog
telephone or fax machine into an Internet device.
Bypasses long-distance toll charges for realized savings.
Supports 10 Mb/s and 100 Mb/s Ethernet networks.
Upgrades software easily for future enhancements.
Uses the latest standards in Internet Telephony.
• MGCP or NCS protocol for call management
• T.38 for fax relay
Supports the following Codecs:
• G.711 (µ-law, A-law)
• G.723.1A
• G.726
• G.729 A
• G.729 A rev. B
• T.38 (fax) over UDP only
Supports Quality of Service technologies.
• Differentiated Services (DS) Field
• IEEE 802.1q user priority tagging
Placing a Call
You can place a call from a telephone or fax connected to:
a port of the Mediatrix 4100 (Mediatrix 4108/4116)
the analog line plugged into the Mediatrix 4100 (Mediatrix 4124)
The unit automatically detects if the call originates from a voice or fax transmission and acts accordingly.
When placing a call, the Mediatrix 4100 collects the DTMF digits dialed and sends a message to the Call
Agent. The Call Agent sends back a list of contacts where the dialed number could be located.
You can dial on a telephone/fax machine connected to the Mediatrix 4100 as you normally do.