GM-901D is a network IP telephone adapter with rich features and high-definition voice quality. It follows the SIP industry standard and is compatible with many other SIP devices and software in the market.
The GM-901D is a VoIP gateway that connects analog phones, PSTN lines, and Ethernet networks to enable voice over IP services. It supports multiple network protocols, DHCP, static IP, and TFTP firmware upgrades.
This manual covers hardware description, power requirements, network interface wiring, web‑based configuration steps, LED indicator meanings, and troubleshooting FAQs. It also includes detailed tables for DHCP, static IP, and TFTP settings.
| Power Input | 100‑240VAC 50‑60 Hz |
|---|---|
| DC Output | +5VDC, 1500 mA |
| Dimensions (W × H) | 105 mm × 27 mm |
| Storage Temperature | -10 °F – 130 °F |
| LAN Interface | RJ45 10/100Base‑T |
| WAN Interface | RJ45 10/100Base‑T |
| FXS Port | Analog phone line |
| PSTN Lifeline Port | Standard PSTN line |