User guide

Chapter 6 — Using the Software
Multi-Tech Systems, Inc. 100
The user should verify that the correct IP parameter values are listed on the screen and revise them if
necessary. Then click OK.
6. Progress bars will appear at the bottom of the screen during the data transfer.
The MultiVOIP’s “Boot” LED will turn off at the end of the transfer.
7. The Download Factory Defaults procedure is complete.
Downloading IFM Firmware
The Interface Module (IFM) is the telephony interface for analog MultiVOIP units. There is one IFM for each channel of the
MultiVOIP unit. For each channel, the IFM handles the analog signals to and from the attached telephone, PBX or CO line.
The IFM communicates with the main processor indicating the status of the telephone line. For example, it might indicate
that a phone is off hook (FXS) or that an incoming ring is present (FXO). The IFM receives operating instructions from the
VOIP’s main processor. For example, the IFM might be instructed to ring the phone (FXS) or seize the line (FXO). The IFM
contains a codec (coder/decoder) to convert the incoming audio to a PCM stream (pulse code modulation) which it sends to
the DSP (digital signal processor). The IFM’s codec also converts outgoing PCM to audio.
The firmware of the IFMs will change from time to time and you may need to upgrade the firmware on your MultiVOIP unit.
To do so, follow these instructions.
1. In the System Information screen of the MultiVOIP Configuration software, check the version number of the
IFM firmware already installed on the MultiVOIP unit. Write down the version number.
2. Exit the Configuration software program. The MultiVOIP Configuration program must be off when invoking
the Download IFM Firmware command. If it is on, the command will not work.
3. To use the Download IFM Firmware command, go to Start | Programs | MultiVOIP n.nn | Download IFM
Firmware.
4. A warning window will appear: “Downloading IFM Firmware will reboot the MultiVOIP. Do you want to
continue?” Click OK.
5. The “Boot” LED on the front panel of the MultiVOIP will come on.
6. The software will search for an IFM firmware file to use to upgrade the system; if the file found represents
firmware newer than that already installed on the MultiVOIP (or if you want to overwrite the same version
of firmware) click Open.