Grandstream HT802 V2 ATA | 2 FXS Ports, Failover SIP, T.38 Fax
The Grandstream HT802 V2 is the premier choice for creating a high-quality, manageable, and highly reliable IP telephony solution. Its ultra-compact size and advanced feature set make it the ideal Analog Telephone Adapter (ATA) for seamlessly integrating analog phones and fax machines into a modern VoIP network.
Enhanced Reliability & Security
The HT802 V2 features several upgrades that ensure service continuity and protection:
- Failover SIP Server: Automatically switches to a secondary SIP server if the main connection is lost, guaranteeing service reliability (a solution to common ATA registration issues).
- Security Protection: Features advanced TLS and SRTP security encryption to protect calls, accounts, and provisioning files from security threats.
- Zero Configuration: Use with Grandstream’s UCM series of IP PBXs for effortless Zero Configuration provisioning.
Core Features for Home & Office
The HT802 V2 is a versatile workhorse for VoIP deployments:
- 2 FXS Ports & 2 SIP Profiles: Supports connecting two independent analog devices (phones or fax machines) to two separate SIP accounts.
- Fax Over IP: Supports T.38 Fax Relay up to 14.4 kpbs, ensuring reliable Fax-over-IP transmission.
- Advanced Voice Quality: Includes Opus codec support, dynamic jitter buffer, and advanced line echo cancellation for crystal-clear HD voice communication.
- 3-Way Conferencing: Features local 3-way voice conferencing support directly on the analog phone.
Comparison: HT802 vs. HT802 V2 (Updated)
The Grandstream HT802 V2 is the latest hardware revision, offering key updates in security, voice quality, and manageability compared to the original HT802.
| Feature | HT802 (Original) | HT802 V2 ( Updated) | Key Benefits |
| CPU |
ARM926, 400/400MHz |
CORTEX-A35 1.3GHz (Faster processor) |
Improves processing speed, enabling better security and faster boot/registration times. |
| DRAM |
256Mbit SDRAM |
512Mbit DDR2 (2x more RAM) |
Increased capacity/speed memory modules. |
| Flash |
128Mbit |
1Gbit (8x more Flash) |
Allows the device to handle larger firmware files with advanced security (TLS) and codec support (Opus). |
| Password |
Default is admin/admin |
Unique Password per Unit (Printed on MAC label) |
Crucial Security Upgrade – Eliminates the need to change the default password immediately, protecting the device from easy unauthorized access. |
Improvements of Grandstream HT802 V2:
The shift to the V2 model is driven by underlying hardware upgrades (CPU/RAM) necessary to support modern VoIP standards. This increased processing power allows for enhanced security (Unique Passwords, better TLS) and the inclusion of Opus codec and robust Failover SIP support, making the HT802 V2 a significantly more secure and reliable choice for professional deployment.
What's in the Package of Grandstream HT802 V2 ATA:
- Grandstream HT802 V2 Analog Telephone Adapter Unit
- Universal Power Supply (Input: 100-240VAC, Output: 5.0VDC/1.0A)
- Ethernet Cable (RJ45)
- Quick Installation Guide
For a full list of specifications, please refer to the Grandstream HT802 V2 datasheet.