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Best Choice Grandstream 
Grandstream UCM6300A IP-PBX Phone System Supports up to 3000 usersAvaya 
Norstar T7316E Charcoal Speaker Phone Modular design: Allows the T7316E to be deployed anywhere as a feature-rich standalone solution; or, by adding the T24 KBest Value Partner 
Avaya Partner 18D Phone (Series 2) Black 1-Year warranty.BT 
BT Duet 210 Corded Telephone, White 10 number memoryGrandstream 
Grandstream UCM6302 IP PBX 2FXO, 2FXS Appliance Supports up to 3000 users and up to 450 concurrent callsAvaya 
Avaya Partner 18D - Digital Phone Black Provides feature buttons for 16 outside lines, or programmable features such as Do Not Disturb and Auto Dial numbersCablesys 
Cablesys Coiled Telephone Handset Cord for Use with PBX Phone Systems, VoIP Telephones - 6 Ft Uncoiled, Rj22, 1.5 Inch L 32 American Wire Gauge, AWG, stranded tinsel ribbon conductors to provide maximum flexibility and increased elastic memoGrandstream Grandstream GXP1625 2 SIP Accounts HD Audio 2 Line IP Phone 2 SIP accounts, 2 line keys, 3-way conferencingYealink Yealink Ultra-Elegant SIP-T48U Giagabit IP Phone - Black [SIP-T48U] 7" 800 x 480-pixel color touch screen with backlightYealink Yealink Linux 6.1 TEE Hardware Encryption High-End Touch Screen IP Phone, 7-Inch Screen Size, Black Built-in Bluetooth 5.0 allows seamless pairing with wireless headsets and mobile devicesBT BT Converse 2100 Corded Telephone, Black 3 quick dial memoriesTiptel Yeastar S50 VoIP PBX Phone System 50 SIp extensionshqtelecom Emergency Wall Telephone Pre-programmed to Auto Dial 911 - RED Auto dials 911 when handset is picked up.Cablesys Cablesys Coiled Telephone Handset Cord for Use with PBX Phone Systems, VoIP Telephones - 12 Ft Uncoiled, Rj22, 1.5 Inch 32 American Wire Gauge, AWG, stranded tinsel ribbon conductors to provide maximum flexibility and increased elastic memoCablesys Cablesys Coiled Telephone Handset Cord Phone Cable for Use with PBX Phone Systems, VoIP Telephones - 6 Ft Uncoiled, Rj22 32 American Wire Gauge, AWG, stranded tinsel ribbon conductors to provide maximum flexibility and increased elastic memo20% Off Panasonic Panasonic DECT Digital Cordless Phone with Built-in Answering Machine and 3 Handsets (KX-TG6823ALB) Black & Silver Noise Reduction - reduce the background noise of the other party when it's difficult to hear; simply by pressing the dedThe VoIP Lounge The VoIP Lounge Replacement 9 Foot Black Handset Curly Cord for Yealink SIP Phone: T40P T41P T32G T38G T40G T42G T46G T4 9 Feet Fully Stretched, 15 Inches Coiled (See Full Description Below)Grandstream Grandstream UCM6308 IP PBX Supporting Full-Band Opus Voice Codec Telephone System Zero configuration provisioning of SIP endpointsPanasonic Panasonic DECT Digital Cordless Phone with Built-in Answering Machine and 1 Handset (KX-TG6821ALB), Black & Silver Noise reduction. 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