00 00 00 Procurement and Contracting Requirements- 01 00 00 General Requirements
- 02 00 00 Existing Conditions
- 03 00 00 Concrete
- 04 00 00 Masonry
- 05 00 00 Metals
- 06 00 00 Wood, Plastics, and Composites
- 07 00 00 Thermal and Moisture Protection
- 08 00 00 Openings
- 09 00 00 Finishes
- 10 00 00 Specialties
- 11 00 00 Equipment
- 12 00 00 Furnishings
- 13 00 00 Special Construction
- 14 00 00 Conveying Equipment
- 21 00 00 Fire Suppression
- 22 00 00 Plumbing
- 23 00 00 Heating, Ventilating, and Air Conditioning (HVAC)
- 25 00 00 Integrated Automation
- 26 00 00 Electrical
27 00 00 Communications- 27 01 00 Operation and Maintenance of Communications Systems
- 27 05 00 Common Work Results for Communications
- 27 06 00 Schedules for Communications
27 08 00 Commissioning of Communications- 27 10 00 Structured Cabling
- 27 20 00 Data Communications
- 27 30 00 Voice Communications
- 27 40 00 Audio-Video Communications
- 27 50 00 Distributed Communications and Monitoring Systems
- 27 60 00 Wireless Transceivers
- 28 00 00 Electronic Safety and Security
- 31 00 00 Earthwork
- 32 00 00 Exterior Improvements
- 33 00 00 Utilities
- 34 00 00 Transportation
- 35 00 00 Waterway and Marine Construction
- 40 00 00 Process Integration
- 41 00 00 Material Processing and Handling Equipment
- 42 00 00 Process Heating, Cooling, and Drying Equipment
- 43 00 00 Process Gas and Liquid Handling, Purification, and Storage Equipment
- 44 00 00 Pollution Control Equipment
- 45 00 00 Industry-Specific Manufacturing Equipment
- 48 00 00 Electrical Power Generation
27 31 00 Voice Communications Switching and Routing Equipment| 27 31 00 |
Voice Communications Switching and Routing Equipment
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| Includes | switching and routing equipment for voice communications. |
| Alternate Terms/Abbreviations | PBX: private branch exchange. IP: internet protocol. |
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Voice Communications Switching and Routing Equipment |
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PBX/ Key Systems |
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Internet Protocol Voice Switches |
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