RJ9 is another name for the 4 Position 4 Conductor (4P4C) connector. This connector or adaptor is also referred to as a "handset connector," because of its common use in wired telephone headsets, to connect the ends of the connection cord to a phone's base and its handset. Most customary wired telephones, as well as some pretty high-tech new phones, usually are compatible with RJ9 headsets.
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Uni-Ta VoIP Phone with RJ9/3.5MM Headset Jack
The Uni-Ta VoIP phone UTP3000 was especially made for voice calls over the Internet or the Voice Over Internet Protocol. Made in China, this phone has both an RJ9 and a 3.5mm headset jack which is compatible with any RJ9 headset.
This is a 3-line business phone, featuring not only a large, clear LCD display but other significant features as well--full-duplex speakerphone with advanced acoustic echo cancellation for clear voice calls, 6 programmable keys, Voice Activity Detection (VAD), Adaptive Jitter Buffer, Comfort Noise Generation (CNG), Caller ID display / block, MWI: Message Waiting Indicator, and 500 phonebook entries.
An excellent telecommunications piece, this phone allows call waiting, call forwarding, auto-answer, paging and intercom, 3-way conference calls, and call holding. It can also handle SMS and voicemail. It also supports keypad, web interfaces and telnet management.
Belkin F1PP010EN-SK Desktop Internet Phone for Skype
The Belkin F1PP010EN-SK Desktop Internet Phone for Skype is a telephone especially created for Skype applications. It allows users to place or receive calls via Skype without the need for a connection with the computer. Also, it supports all major Skype features. It also offers redial, call hold, phonebook dialling, speakerphone, call-timer-display, and other options.
With this phone, users can enjoy unlimited Skype calling anytime, anywhere, and for as long as they want; thus, this phone is a good one-time investment that could minimise anybody's telephone bills -- for Skype to Skype calls, that is. For those who wish to call non-Skype users and numbers, this phone system can also offer reduced rates as compared to those charged by traditional telephones.
This desktop Internet phone has a plug-and-play hassle-free installation. It can directly connect to the Internet without security key input.
Cisco Unified IP Phone 6921
The Cisco Unified IP Phone 6921, like other phones in the 6000 series, is compatible with RJ9 headsets. This telephone supports 2 lines, full-duplex speakerphone, seven user-adjustable ring tones, and a large graphical antiglare display. The phone also features a lighted menu and lighted hold keys which stay lit while call hold or various menu functions are being used.
This phone also offers comfort-noise generation and voice-activity-detection programming.
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