Best Expansion . Reviews July, 2020

Polycom RealPresence Trio Expansion Microphones (2200-65790-001)

Search only Polycom brand name
Polycom RealPresence Trio Expansion Microphones (2200-65790-001)

Current price: 272.9 USD


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Height: 0.01 Inches

Length: 0.01 Inches

Width: 0.01 Inches

Weight: 1.8 Pounds

  • Compatible with Polycom RealPresence Trio 8500 and 8800 conference units
  • Includes (2) 2.1m/7ft. extension cables
  • Pair of microphones that extend the microphone pick up range of your RealPresence Trio 8800 conference unit

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Polycom Vvx Color Expansion Module

Search only Polycom brand name
Polycom Vvx Color Expansion Module

Current price: 138 USD

Saving: $50.00 (27%)


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Height: 6.2992 Inches

Length: 2.3622 Inches

Width: 4.92125 Inches

Weight: 0.992080179 Pounds

Warranty: limited warranty

  • Compatible with Polycom RealPresence Trio 8500 and 8800 conference units
  • Includes (2) 2.1m/7ft. extension cables
  • Pair of microphones that extend the microphone pick up range of your RealPresence Trio 8800 conference unit
  • Dual color illuminated LEDs for line status information
  • 28 multifunctional line keys configurable as line registration call appearance speed dial DSS or BLF
  • Compatibe with VVX 300 VVX 310 VVX 400 VVX 410 VVX 500 and VVX 600

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Logitech MeetUp and Expansion Mic HD Video and Audio Conferencing System for Small Meeting Rooms - Black

Search only Logitech brand name
Logitech MeetUp and Expansion Mic HD Video and Audio Conferencing System for Small Meeting Rooms - Black

Current price: 1099 USD


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Height: 18.5 Inches

Length: 4.92 Inches

Width: 7.83 Inches

Weight: 2.21344111048 Pounds

Warranty: 2 - year limited warranty

  • Compatible with Polycom RealPresence Trio 8500 and 8800 conference units
  • Includes (2) 2.1m/7ft. extension cables
  • Pair of microphones that extend the microphone pick up range of your RealPresence Trio 8800 conference unit
  • Dual color illuminated LEDs for line status information
  • 28 multifunctional line keys configurable as line registration call appearance speed dial DSS or BLF
  • Compatibe with VVX 300 VVX 310 VVX 400 VVX 410 VVX 500 and VVX 600
  • Doubles as a speakerphone with an easy wireless connection to Bluetooth mobile devices
  • Supports the highest HD video quality for your network bandwidth and apps now and in the future with multiple video resolutions, including Ultra 4K, 1080p and 720p
  • Expansion mic extends camera's audio range from 8 to 14 feet; audio system features 3 microphones and a custom-tuned speaker specifically optimized for ultra-clear conversations in huddle rooms
  • Super-wide 120-degree field of view enables everyone in the room to be seen, even people sitting close to the camera or at the edges of the room
  • Logitech's premier Conference Cam specifically designed for business-grade video meetings in huddle rooms and small conference rooms

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Polycom 2200-48890-025 VVX EM50 Expansion Module for VVX 450

Search only Polycom brand name
Polycom 2200-48890-025 VVX EM50 Expansion Module for VVX 450

Current price: 195.59 USD

Saving: $140.40 (42%)


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Weight: 1.3668660244 Pounds

  • Compatible with Polycom RealPresence Trio 8500 and 8800 conference units
  • Includes (2) 2.1m/7ft. extension cables
  • Pair of microphones that extend the microphone pick up range of your RealPresence Trio 8800 conference unit
  • Dual color illuminated LEDs for line status information
  • 28 multifunctional line keys configurable as line registration call appearance speed dial DSS or BLF
  • Compatibe with VVX 300 VVX 310 VVX 400 VVX 410 VVX 500 and VVX 600
  • Doubles as a speakerphone with an easy wireless connection to Bluetooth mobile devices
  • Supports the highest HD video quality for your network bandwidth and apps now and in the future with multiple video resolutions, including Ultra 4K, 1080p and 720p
  • Expansion mic extends camera's audio range from 8 to 14 feet; audio system features 3 microphones and a custom-tuned speaker specifically optimized for ultra-clear conversations in huddle rooms
  • Super-wide 120-degree field of view enables everyone in the room to be seen, even people sitting close to the camera or at the edges of the room
  • Logitech's premier Conference Cam specifically designed for business-grade video meetings in huddle rooms and small conference rooms
  • - Leverage previous IT infrastructure investment— Maximize your Polycom VVX 450 business IP phones by equipping them with EM50, turning them into fully-enhanced personal desktop solutions
  • - Increase productivity—Provides advanced call handling capabilities with a visual experience that simplifies contact management
  • - Ease of installation—Setup is fast and easy, as signaling and powering are provided by the VVX 450 host phone
  • - - Ease of use—Large, high resolution 5.0” screen with programmable line keys that provide an simple, intuitive user interface

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Yealink High-Performance LCD Expansion Module

Search only Yealink brand name
Yealink High-Performance LCD Expansion Module

Current price: 79 USD

Saving: $20.00 (20%)


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Height: 13.5433070728 Inches

Length: 18.503936989 Inches

Width: 14.9999999847 Inches

Weight: 0.95 Pounds

  • Compatible with Polycom RealPresence Trio 8500 and 8800 conference units
  • Includes (2) 2.1m/7ft. extension cables
  • Pair of microphones that extend the microphone pick up range of your RealPresence Trio 8800 conference unit
  • Dual color illuminated LEDs for line status information
  • 28 multifunctional line keys configurable as line registration call appearance speed dial DSS or BLF
  • Compatibe with VVX 300 VVX 310 VVX 400 VVX 410 VVX 500 and VVX 600
  • Doubles as a speakerphone with an easy wireless connection to Bluetooth mobile devices
  • Supports the highest HD video quality for your network bandwidth and apps now and in the future with multiple video resolutions, including Ultra 4K, 1080p and 720p
  • Expansion mic extends camera's audio range from 8 to 14 feet; audio system features 3 microphones and a custom-tuned speaker specifically optimized for ultra-clear conversations in huddle rooms
  • Super-wide 120-degree field of view enables everyone in the room to be seen, even people sitting close to the camera or at the edges of the room
  • Logitech's premier Conference Cam specifically designed for business-grade video meetings in huddle rooms and small conference rooms
  • - Leverage previous IT infrastructure investment— Maximize your Polycom VVX 450 business IP phones by equipping them with EM50, turning them into fully-enhanced personal desktop solutions
  • - Increase productivity—Provides advanced call handling capabilities with a visual experience that simplifies contact management
  • - Ease of installation—Setup is fast and easy, as signaling and powering are provided by the VVX 450 host phone
  • - - Ease of use—Large, high resolution 5.0” screen with programmable line keys that provide an simple, intuitive user interface
  • Supports up to six modules

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AT&T SB67108 Accessory Expansion Handset for use with Expansion Handset 3 Pack

Search only AT&T brand name
AT&T SB67108 Accessory Expansion Handset for use with Expansion Handset 3 Pack

Current price: 274.95 USD


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Height: 6.8 Inches

Length: 10 Inches

Width: 8.2 Inches

Weight: 3.8 Pounds

  • Compatible with Polycom RealPresence Trio 8500 and 8800 conference units
  • Includes (2) 2.1m/7ft. extension cables
  • Pair of microphones that extend the microphone pick up range of your RealPresence Trio 8800 conference unit
  • Dual color illuminated LEDs for line status information
  • 28 multifunctional line keys configurable as line registration call appearance speed dial DSS or BLF
  • Compatibe with VVX 300 VVX 310 VVX 400 VVX 410 VVX 500 and VVX 600
  • Doubles as a speakerphone with an easy wireless connection to Bluetooth mobile devices
  • Supports the highest HD video quality for your network bandwidth and apps now and in the future with multiple video resolutions, including Ultra 4K, 1080p and 720p
  • Expansion mic extends camera's audio range from 8 to 14 feet; audio system features 3 microphones and a custom-tuned speaker specifically optimized for ultra-clear conversations in huddle rooms
  • Super-wide 120-degree field of view enables everyone in the room to be seen, even people sitting close to the camera or at the edges of the room
  • Logitech's premier Conference Cam specifically designed for business-grade video meetings in huddle rooms and small conference rooms
  • - Leverage previous IT infrastructure investment— Maximize your Polycom VVX 450 business IP phones by equipping them with EM50, turning them into fully-enhanced personal desktop solutions
  • - Increase productivity—Provides advanced call handling capabilities with a visual experience that simplifies contact management
  • - Ease of installation—Setup is fast and easy, as signaling and powering are provided by the VVX 450 host phone
  • - - Ease of use—Large, high resolution 5.0” screen with programmable line keys that provide an simple, intuitive user interface
  • Supports up to six modules
  • Expansion Handset Only.
  • Push-to-Talk Intercom from base to handset from handset to handset.
  • Extendable Range.
  • 1 to 4 Line Capability.
  • DECT Zero Blind Slot Digital Technology.

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Vvx Color Expansion Module (Renewed)

Search only Polycom brand name
Vvx Color Expansion Module (Renewed)

Current price: 145 USD


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Height: 6.3 Inches

Length: 2.36 Inches

Width: 4.92 Inches

Warranty: 90 days limited warranty

  • Compatible with Polycom RealPresence Trio 8500 and 8800 conference units
  • Includes (2) 2.1m/7ft. extension cables
  • Pair of microphones that extend the microphone pick up range of your RealPresence Trio 8800 conference unit
  • Dual color illuminated LEDs for line status information
  • 28 multifunctional line keys configurable as line registration call appearance speed dial DSS or BLF
  • Compatibe with VVX 300 VVX 310 VVX 400 VVX 410 VVX 500 and VVX 600
  • Doubles as a speakerphone with an easy wireless connection to Bluetooth mobile devices
  • Supports the highest HD video quality for your network bandwidth and apps now and in the future with multiple video resolutions, including Ultra 4K, 1080p and 720p
  • Expansion mic extends camera's audio range from 8 to 14 feet; audio system features 3 microphones and a custom-tuned speaker specifically optimized for ultra-clear conversations in huddle rooms
  • Super-wide 120-degree field of view enables everyone in the room to be seen, even people sitting close to the camera or at the edges of the room
  • Logitech's premier Conference Cam specifically designed for business-grade video meetings in huddle rooms and small conference rooms
  • - Leverage previous IT infrastructure investment— Maximize your Polycom VVX 450 business IP phones by equipping them with EM50, turning them into fully-enhanced personal desktop solutions
  • - Increase productivity—Provides advanced call handling capabilities with a visual experience that simplifies contact management
  • - Ease of installation—Setup is fast and easy, as signaling and powering are provided by the VVX 450 host phone
  • - - Ease of use—Large, high resolution 5.0” screen with programmable line keys that provide an simple, intuitive user interface
  • Supports up to six modules
  • Expansion Handset Only.
  • Push-to-Talk Intercom from base to handset from handset to handset.
  • Extendable Range.
  • 1 to 4 Line Capability.
  • DECT Zero Blind Slot Digital Technology.
  • Dual color illuminated LEDs for line status information
  • 28 multifunctional line keys configurable as line registration call appearance speed dial DSS or BLF
  • Compatibe with VVX 300 VVX 310 VVX 400 VVX 410 VVX 500 and VVX 600
  • This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty, and may arrive in a generic box. Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon.com

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Yealink T4 series Expansion Module

Search only Yealink brand name
Yealink T4 series Expansion Module

Current price: 89 USD

Saving: $6.00 (6%)


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Height: 3.6 Inches

Length: 9.4 Inches

Width: 6.1 Inches

Weight: 1.4 Pounds

  • Compatible with Polycom RealPresence Trio 8500 and 8800 conference units
  • Includes (2) 2.1m/7ft. extension cables
  • Pair of microphones that extend the microphone pick up range of your RealPresence Trio 8800 conference unit
  • Dual color illuminated LEDs for line status information
  • 28 multifunctional line keys configurable as line registration call appearance speed dial DSS or BLF
  • Compatibe with VVX 300 VVX 310 VVX 400 VVX 410 VVX 500 and VVX 600
  • Doubles as a speakerphone with an easy wireless connection to Bluetooth mobile devices
  • Supports the highest HD video quality for your network bandwidth and apps now and in the future with multiple video resolutions, including Ultra 4K, 1080p and 720p
  • Expansion mic extends camera's audio range from 8 to 14 feet; audio system features 3 microphones and a custom-tuned speaker specifically optimized for ultra-clear conversations in huddle rooms
  • Super-wide 120-degree field of view enables everyone in the room to be seen, even people sitting close to the camera or at the edges of the room
  • Logitech's premier Conference Cam specifically designed for business-grade video meetings in huddle rooms and small conference rooms
  • - Leverage previous IT infrastructure investment— Maximize your Polycom VVX 450 business IP phones by equipping them with EM50, turning them into fully-enhanced personal desktop solutions
  • - Increase productivity—Provides advanced call handling capabilities with a visual experience that simplifies contact management
  • - Ease of installation—Setup is fast and easy, as signaling and powering are provided by the VVX 450 host phone
  • - - Ease of use—Large, high resolution 5.0” screen with programmable line keys that provide an simple, intuitive user interface
  • Supports up to six modules
  • Expansion Handset Only.
  • Push-to-Talk Intercom from base to handset from handset to handset.
  • Extendable Range.
  • 1 to 4 Line Capability.
  • DECT Zero Blind Slot Digital Technology.
  • Dual color illuminated LEDs for line status information
  • 28 multifunctional line keys configurable as line registration call appearance speed dial DSS or BLF
  • Compatibe with VVX 300 VVX 310 VVX 400 VVX 410 VVX 500 and VVX 600
  • This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty, and may arrive in a generic box. Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon.com
  • Two pages of 20 flexible buttons are shown on the display can be programmed up to 40 various features, the productivity-enhancing features include BLF/BLA, speed dialing, call forward, transfer, park, pickup, etc.
  • Supports up to 6 Expansion Modules for an attendant console application, adding up to 240 additional buttons.
  • Equipped with a 160x320 graphic LCD with Backlight. 20 physical keys each with a dual-color LED and two page views are possible.
  • Expanding the functional capability of your sip phone to a whole new level.
  • The EXP40 Expansion Module for the SIP-T46S, SIP-T46G, SIP-T48S and SIP-T48G.

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Cisco 7916 Unified IP Phone Expansion Module for Cisco 7962, 7965, 7975G, Requires Cisco Communications Manager

Search only Cisco brand name
Cisco 7916 Unified IP Phone Expansion Module for Cisco 7962, 7965, 7975G, Requires Cisco Communications Manager

Current price: 28.97 USD


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Height: 8 Inches

Length: 10.2 Inches

Width: 4.84 Inches

Weight: 0.83 Pounds

  • Compatible with Polycom RealPresence Trio 8500 and 8800 conference units
  • Includes (2) 2.1m/7ft. extension cables
  • Pair of microphones that extend the microphone pick up range of your RealPresence Trio 8800 conference unit
  • Dual color illuminated LEDs for line status information
  • 28 multifunctional line keys configurable as line registration call appearance speed dial DSS or BLF
  • Compatibe with VVX 300 VVX 310 VVX 400 VVX 410 VVX 500 and VVX 600
  • Doubles as a speakerphone with an easy wireless connection to Bluetooth mobile devices
  • Supports the highest HD video quality for your network bandwidth and apps now and in the future with multiple video resolutions, including Ultra 4K, 1080p and 720p
  • Expansion mic extends camera's audio range from 8 to 14 feet; audio system features 3 microphones and a custom-tuned speaker specifically optimized for ultra-clear conversations in huddle rooms
  • Super-wide 120-degree field of view enables everyone in the room to be seen, even people sitting close to the camera or at the edges of the room
  • Logitech's premier Conference Cam specifically designed for business-grade video meetings in huddle rooms and small conference rooms
  • - Leverage previous IT infrastructure investment— Maximize your Polycom VVX 450 business IP phones by equipping them with EM50, turning them into fully-enhanced personal desktop solutions
  • - Increase productivity—Provides advanced call handling capabilities with a visual experience that simplifies contact management
  • - Ease of installation—Setup is fast and easy, as signaling and powering are provided by the VVX 450 host phone
  • - - Ease of use—Large, high resolution 5.0” screen with programmable line keys that provide an simple, intuitive user interface
  • Supports up to six modules
  • Expansion Handset Only.
  • Push-to-Talk Intercom from base to handset from handset to handset.
  • Extendable Range.
  • 1 to 4 Line Capability.
  • DECT Zero Blind Slot Digital Technology.
  • Dual color illuminated LEDs for line status information
  • 28 multifunctional line keys configurable as line registration call appearance speed dial DSS or BLF
  • Compatibe with VVX 300 VVX 310 VVX 400 VVX 410 VVX 500 and VVX 600
  • This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty, and may arrive in a generic box. Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon.com
  • Two pages of 20 flexible buttons are shown on the display can be programmed up to 40 various features, the productivity-enhancing features include BLF/BLA, speed dialing, call forward, transfer, park, pickup, etc.
  • Supports up to 6 Expansion Modules for an attendant console application, adding up to 240 additional buttons.
  • Equipped with a 160x320 graphic LCD with Backlight. 20 physical keys each with a dual-color LED and two page views are possible.
  • Expanding the functional capability of your sip phone to a whole new level.
  • The EXP40 Expansion Module for the SIP-T46S, SIP-T46G, SIP-T48S and SIP-T48G.
  • Compatible with Cisco 7962, 7965 and 7975G Models
  • Requires Cisco Communications Manager
  • Programmable buttons, Line Key, Speed-dial
  • 12 Physical Buttons (24 With Page Key)
  • 4.3-inch Graphical 16-bit Color Display (480x272)

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Grandstream GS-GXP2200EXT Expansion Module for VoIP Phone

Search only Grandstream brand name
Grandstream GS-GXP2200EXT Expansion Module for VoIP Phone

Current price: 77.99 USD

Saving: $7.01 (8%)


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Height: 3 Inches

Length: 10 Inches

Width: 6 Inches

Weight: 0.85 Pounds

Warranty: 1 year

  • Compatible with Polycom RealPresence Trio 8500 and 8800 conference units
  • Includes (2) 2.1m/7ft. extension cables
  • Pair of microphones that extend the microphone pick up range of your RealPresence Trio 8800 conference unit
  • Dual color illuminated LEDs for line status information
  • 28 multifunctional line keys configurable as line registration call appearance speed dial DSS or BLF
  • Compatibe with VVX 300 VVX 310 VVX 400 VVX 410 VVX 500 and VVX 600
  • Doubles as a speakerphone with an easy wireless connection to Bluetooth mobile devices
  • Supports the highest HD video quality for your network bandwidth and apps now and in the future with multiple video resolutions, including Ultra 4K, 1080p and 720p
  • Expansion mic extends camera's audio range from 8 to 14 feet; audio system features 3 microphones and a custom-tuned speaker specifically optimized for ultra-clear conversations in huddle rooms
  • Super-wide 120-degree field of view enables everyone in the room to be seen, even people sitting close to the camera or at the edges of the room
  • Logitech's premier Conference Cam specifically designed for business-grade video meetings in huddle rooms and small conference rooms
  • - Leverage previous IT infrastructure investment— Maximize your Polycom VVX 450 business IP phones by equipping them with EM50, turning them into fully-enhanced personal desktop solutions
  • - Increase productivity—Provides advanced call handling capabilities with a visual experience that simplifies contact management
  • - Ease of installation—Setup is fast and easy, as signaling and powering are provided by the VVX 450 host phone
  • - - Ease of use—Large, high resolution 5.0” screen with programmable line keys that provide an simple, intuitive user interface
  • Supports up to six modules
  • Expansion Handset Only.
  • Push-to-Talk Intercom from base to handset from handset to handset.
  • Extendable Range.
  • 1 to 4 Line Capability.
  • DECT Zero Blind Slot Digital Technology.
  • Dual color illuminated LEDs for line status information
  • 28 multifunctional line keys configurable as line registration call appearance speed dial DSS or BLF
  • Compatibe with VVX 300 VVX 310 VVX 400 VVX 410 VVX 500 and VVX 600
  • This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty, and may arrive in a generic box. Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon.com
  • Two pages of 20 flexible buttons are shown on the display can be programmed up to 40 various features, the productivity-enhancing features include BLF/BLA, speed dialing, call forward, transfer, park, pickup, etc.
  • Supports up to 6 Expansion Modules for an attendant console application, adding up to 240 additional buttons.
  • Equipped with a 160x320 graphic LCD with Backlight. 20 physical keys each with a dual-color LED and two page views are possible.
  • Expanding the functional capability of your sip phone to a whole new level.
  • The EXP40 Expansion Module for the SIP-T46S, SIP-T46G, SIP-T48S and SIP-T48G.
  • Compatible with Cisco 7962, 7965 and 7975G Models
  • Requires Cisco Communications Manager
  • Programmable buttons, Line Key, Speed-dial
  • 12 Physical Buttons (24 With Page Key)
  • 4.3-inch Graphical 16-bit Color Display (480x272)
  • Busy Lamp Field (BLF)
  • 20 programmable buttons per module
  • 2 page switch keys which allows up to 40 extensions per extension module
  • Daisy-chain 4 modules for up to 160 programmable buttons
  • Large 128x384 graphic LCD providing feature-rich graphics

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