Grandstream HT813 Telephone Adapter Replacement Handsets 711 support

711 support

so all that remains is crystal-clear audio quality

Experience the ultimate efficiency and crystal-clear full-duplex HD audio with MSpeech

Premium Audio: 8-microphone array with noise reduction and 6 m voice pickup range for clear

With programmable keys

Grandstream HT813 Telephone Adapter Replacement Handsets 711 supportThe HT813 is an analog telephone adapter that offers backup lifeline support using a PSTN line. It is designed in an ultra compact size that features HD voice quality, advanced VoIP functionality, high end security protection, and multiple auto provisioning options. These advanced features also allow service providers to offer high quality IP service to customers looking to upgrade to VoIP.