7 Best
Voice Over Ip Telephone Adapters
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Product Highlights- Audio: clear, natural-sounding voice quality via advanced preprocessing, high-performance echo cancellation, voice activity detection, and comfort noise generation
- Hardware: two rj-11 fxs ports and one 10/100 mbps rj-45 ethernet port
- Versatile: ip phone adapter brings traditional analog devices into the ip world
- Security: supports the latest encryption with transport layer security (tls), secure hash algorithm (sha-2) and new secure real-time protocol (srtp) cipher suites
- Peace of mind: 1-year limited hardware warranty
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Product Highlights
- 2 sip lines hd voice poe enabled intelligent dss keys handset / hands-free mode desktop / wall-mounted optional external po
- Call out / answer / reject mute / unmute (microphone) call hold / resume call waiting intercom speed dial anonymous call (hide caller id) redial auto-answering voice message (with server)
- □√ delicate and fashion outlook. □√ easy installation and configuration. □√ cost-effective model & environmental friendly design. □√ 10 speed dial keys, long press numeric keypad to achieve speed dial □√ 1 programmable dss key. □√ 10/100mbps ethernet, support poe power supply. □√ support the install mode of desktop or wall-mounted □√ compatible with major platforms: aste
- Call logs (in/out/missed, max support 600 records in the web) blocked list / allowed list voice message waiting indication (vmwi) programmable dss/soft keys network time synchronization action url / active uri uac
- Hd voice microphone/speaker (handset/hands-free, 0 ~ 7khz frequency response) hac handset wideband adc/dac 16khz sampling narrowband codec: g.711a/u, g.723.1, g.726, g.729a/b, ilbc wideband codec: g.722, opus full-duplex acoustic echo canceller (aec) voice activity detection (vad) / comfort noise generation (cng) / background noise estimation (bne) / noise reduction (nr...
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Product Highlights
- [hd audio] yealink optima hd voice technology combines cutting-edge hardware and software with wideband technology for maximum acoustic performance. being a totally open, highly versatile audio codec, opus, is designed to perform a higher hd audio quality than other wideband codecs in a high network bandwidth; however, if your current network quality is poor, opus can p...
- [secure transport and interoperability] yealink t4u series uses sip over transport layer security (tls/ssl), which is the latest network security technology. it’s also compatible with leading soft switch suppliers, such as 3cx, broadsoft broadworks. moreover, it is carried with dual fimrware images that gives you a enterprise-level protection to avoid bricking your syst...
- [easy customization and high expansibility] accompanied by two usb ports, the t43u is your right-hand man in the office that makes bluetooth, wi-fi, usb headset and usb recording possible, and you can use any two of them freely according to your needs to enrich phone features. meanwhile, the phone not only has three pages of flexible buttons that can be easily programme...
- [efficient installation and provisioning] yealink t4u series supports efficient provisioning and effortless mass deployment with yealink’s redirection and provisioning service (rps) and boot mechanism to help you realize the zero touch provisioning without any complex manual settings, which makes the t4u series simple to deploy, easy to maintain and upgrade. furthermore...
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