# H1S-3 XPON ONU English Firmware
## Basic Info
Model: H1S-3 ONT Optical Modem
Chipset: Hisilicon
PON Type: XPON (Auto GPON / EPON)
Ports: 1GE + 3FE + 1TEL + USB + 2.4G WiFi
Firmware UI: Full English Web Interface
Flash Method: Web GUI upload, UART serial flash
## Firmware Features
1. Complete English web management page for overseas ISP deployment.
2. Auto GPON/EPON detection, support LOID, SN and Password registration on OLT.
3. WAN mode: PPPoE, Static IP, DHCP; Bridge / Router mode available.
4. 2.4GHz Wi-Fi, multi-SSID support.
5. VOIP telephone: SIP and H.248 protocol for TEL port.
6. USB storage sharing.
## Bug Improvements
– Fix unstable PON registration and intermittent fiber drop.
– Resolve 2.4G WiFi freeze and disconnection after long running.
– Optimize VOIP audio noise and call drop issue.
– Fix ONU crash during long standby.