Grandstream HT813 - VoIP phone adapter

Grandstream HT813 VoIP Phone Adapter

Reliable Analog Telephone Adapter (ATA) for VoIP

The Grandstream HT813 is a powerful VoIP phone adapter that combines an FXS port for analog phones and an FXO port for PSTN line integration. This dual-port design makes it ideal for businesses or home users transitioning from legacy telephony infrastructure to VoIP, while still maintaining access to traditional phone lines as a backup.

By leveraging Grandstream innovation, the HT813 offers superior voice quality, strong encryption, and universal SIP compatibility. It is a dependable bridge device that allows users to maximize existing investments in analog equipment while unlocking the cost benefits and flexibility of VoIP.

Features :

The HT813 is engineered for crystal-clear voice through advanced VoIP technology with support for multiple voice codecs, industry-standard SIP support, and feature-rich telephony functions. Its integrated NAT router, secure provisioning, and strong call encryption ensure smooth deployment and daily reliability.

Advanced Options :

With its dual-port system (FXS and FXO), the HT813 delivers flexible configurations including failover from VoIP to PSTN during outages. Auto-provisioning, TR-069 support, and compatibility with leading SIP platforms make it a highly deployable solution for both businesses and service providers.