Chapter 7 - Using the MultiVOIP Software

For FXO-to-FXO communications, you can enable a specific kind of FXO Disconnect Options: Current Loss, Tone Detection, or Silence Detection. Check with your in-house phone personnel to verify the type of disconnect to use. If current lossis checked, the VOIP will hang up when it detects a loss of current on the FXO (phone) port. For tone detection, select from the lists one or two tones that will cause the line to disconnect. The person hanging up the call must then press the key or keys that produce those tones to hang up a call. For silence detection, select One Way or Two Way, then set the timer for the number of seconds of silence before disconnect. The default value of 15 seconds may be shorter than desired for your application.

Voice/Fax Tab

The Voice/Fax tab controls voice and DTMF gain, voice coder, fax settings, and advanced options.

In the Voice Gain group you can select the Input and Output voice gain. Gain is the increased signaling power that occurs as the signal is boosted by the MVP120. The Input Gain list defines the input gain for this voice channel. Before your MVP120 digitizes voice, the volume can be increased or decreased. Input gain modifies the level of the audio coming into the voice channel before it is sent over the Internet to the remote MVP120. The valid range for this option is +31dB to –31dB. The recommended and default value is 0. The Output Gain list defines the voice output gain for this voice channel. Before your MVP120 converts digital voice back to analog, the volume can be increased or decreased. The output gain modifies the level of the audio being output to the device attached to the voice channel. The valid range for this option is +31dB to – 31dB. The recommended and default value is 0.

The DTMF Gain (Dual Tone Multi-Frequency) group controls the volume level of the digital tones sent out for Touchtone dialing. The Gain High and Gain Low lists control the gain in dB (decibels) of the High and Low tones in the tone pairs. The default gain values are -4dB and -7dB, respectively. DTMF Gain should not be changed except under supervision of MultiTech’s Technical Support.

The DTMF Out of Band check box is selected so the MVP120 will reproduce the DTMF tones rather than passing them through with voice. When this option is checked the DTMF is sent via RTP packets.

The MVP120 supports many state-of-the art ITU (International Telecommunications Union) voice coders. The Voice Coder list enables you to select from a range of coders with specific bandwidths. The higher the bps rate, the more bandwidth is used. The channel that you are calling has to have the same voice coder selected. Otherwise, you will always get a Busy signal.

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Multi-Tech Systems MVP120 manual Voice/Fax Tab
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MVP120 specifications

Multi-Tech Systems MVP120 is an advanced communication device designed to enhance various applications across industries. It is a part of the Multi-Tech's MVP (MultiVoIP) product line, which is renowned for its versatility and robustness in VoIP (Voice over Internet Protocol) solutions. The MVP120 provides businesses with an efficient way to convert traditional analog voice signals into digital formats suitable for transmission over the Internet or other digital networks.

One of the main features of the MVP120 is its support for up to 12 voice channels. This capability allows multiple calls to be managed simultaneously, making it an ideal choice for businesses with high call volumes. The device offers a seamless integration with existing telephony systems, enabling users to retain their current infrastructure while benefiting from the added advantages of VoIP technology.

The MVP120 utilizes advanced Voice over IP protocols, including SIP (Session Initiation Protocol), which facilitates the establishment, management, and termination of voice sessions over the internet. SIP compatibility enhances interoperability with various service providers and existing communication systems, ensuring a flexible and scalable solution for businesses of all sizes.

Another noteworthy characteristic of the MVP120 is its built-in T.38 fax support. This enables the transmission of fax documents over IP networks, ensuring reliable delivery even in environments where traditional fax machines may experience disruptions. This feature is particularly beneficial for organizations that still rely on fax communication while transitioning to more modern digital systems.

Security is a primary concern in today’s digital environment, and the MVP120 addresses this with comprehensive protocol support, including SRTP (Secure Real-time Transport Protocol) and TLS (Transport Layer Security). These technologies ensure that voice communications remain secure and private, protecting sensitive information from potential threats.

The MVP120 is also designed with user-friendly management and configuration in mind. It features a web-based interface that makes it easy for administrators to set up and manage the device remotely. This simplifies the deployment process and minimizes downtime, allowing businesses to maintain operational continuity.

In essence, the Multi-Tech Systems MVP120 stands out as a powerful tool for businesses seeking to embrace the benefits of VoIP technology while maintaining reliable communication through traditional means. Its combination of voice channels, protocol support, fax capabilities, and security features make it an excellent choice for modern enterprises aiming to enhance their communication systems.
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