Overview

The Vodavi DTMF4-A is a DTMF (Dual Tone Multi-Frequency) expansion card designed for use in Vodavi telephone systems. This card provides Dual Tone Multi-Frequency signaling and detection capabilities, enabling tone-based control and communication features in voice systems. The DTMF4-A integrates directly into supported Vodavi KSU (Key System Unit) platforms and supports multiple channels for simultaneous tone detection.

Key Features

• Provides DTMF tone detection and signaling for telephone systems
• Compatible with Vodavi XTS and STS series KSU platforms
• Installs on PRIB, T1IB, LCOBE, LCOBC, SLIBE, and SLIBC PCBs
• Supports up to four (4) DTMF tone detection circuits
• Multiple units can be installed for expanded capacity
• Used condition, tested and fully functional

Technical Specifications

The following specifications define the Vodavi DTMF4-A card's capabilities and compatibility:

• Product Type: DTMF Expansion Card
• Manufacturer: Vodavi (Vertical Communications)
• Function: Dual Tone Multi-Frequency detection and signaling
• DTMF Circuits: 4-channel tone detection
• Compatible PCB: PRIB, T1IB, LCOBE, LCOBC, SLIBE, SLIBC
• System Series: Vodavi XTS, XTS-IP, STS, STSe
• Installation Method: Card-edge plug into KSU main board or expansion interface
• Maximum Units: Up to 2 DTMF cards per system (depending on configuration)

Typical Applications

• Automated call routing and IVR (Interactive Voice Response) systems
• Voice mail integration with DTMF menu navigation
• Tone-based external paging and notification systems
• Third-party PBX and Centrex integration requiring DTMF signaling
• Telephone system expansion for facilities requiring enhanced DTMF capacity

Compatibility & Replacements

Compatible With

• Vodavi XTS telephone systems (XTS, XTS-IP, XTSc-IP)
• Vodavi STS series KSU (STS, STSe, Triad-S)
• Vertical Communications successor systems compatible with Vodavi legacy hardware
• PRIB, T1IB, LCOBE, LCOBC, SLIBE, SLIBC PCB platforms

Replaces / Drop-In Replacement For

• Vodavi 3031-60 DTRU4 (4-channel DTMF Receiver variant)
• Other Vodavi DTMF expansion cards for XTS/STS platforms

Works With

• Vodavi STS and XTS KSU programming and configuration
• ITU-T Q.23 standard DTMF tone signaling
• Vodavi voice mail and IVR application modules
• Legacy Vodavi PBX integration protocols