🏷️ Basic Information Identification Make: Panasonic Model: BB-GT1540B / BB-GTA150B Year: Not Specified Generation: Not Specified 📋 Manual Details Document Info Manual Type: Service Manual Language: English Format: PDF Availability: Download Page Count: Not Specified 🔧 Maintenance Troubleshooting Common Issues Addressed: No Dial Tone, Sound Quality, Handset Pairing Diagnostic Procedures: Circuit Testing, Component Identification Repair Parts Replacement: LCD Screen, Speaker, Microphone, Battery Calibration Procedures: Not Typically Required 📄 Device Type Functionality Device Category: Telephone System Primary Function: Business Communication Features: DECT 6.0, Multi-Handset Capability, Speakerphone Included Components: Base Unit, Handset, Power Adapter, Telephone Cord 📄 Technical Specs Connectivity Wireless Technology: DECT 6.0 Phone Line Interface: Analog (POTS) Power Power Source: AC Adapter Handset Battery Type: Rechargeable Ni-MH Display Handset Display Type: LCD Sound Audio Features: Speakerphone, Tone/Pulse Dialing