| Model | SPA301-G1 |
| Display | Monochrome backlit display with 128 x 64 pixel resolution |
| Lines | Supports up to 3 simultaneous calls |
| Ethernet Ports | Dual switched 10/100 Ethernet ports |
| Power over Ethernet (PoE) | Yes, supports IEEE 802.3af PoE |
| Headset Port | RJ9 headset port |
| Speakerphone | Full-duplex speakerphone with acoustic echo cancellation (AEC) |
| Audio Codec | G.711a, G.711u, G.722, G.726, G.729a, and Dynamic Payload |
| Protocol Support | SIP (RFC 3261), TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP, ICMP, DNS (A record, SRV, NAPTR), DHCP, PPPoE, TFTP, NTP |
| QoS Support | 802.1p/Q tagging (VLAN), Layer 3 ToS DSCP |
| Call Features | Caller ID, Call Hold, Call Transfer, Call Waiting, Call Forwarding, 3-Way Conference, Do Not Disturb (DND), Call Pickup, Redial, Call Park |
| Security | Password-protected access to administrator and user-level features, HTTPS with factory-installed client certificate, SIP over TLS, SRTP |
| Provisioning | Web-based configuration, phone provisioning, and firmware upgrade |
| Localization | Built-in web server for administration and configuration with multiple languages |
| Dimensions (LxWxH) | 209 x 184 x 76 mm (8.23 x 7.24 x 2.99 in) |
| Weight | 0.93 kg (2.05 lbs) |
| Operating Temperature | 0°C to 45°C (32°F to 113°F) |
| Storage Temperature | -10°C to 60°C (14°F to 140°F) |
| Humidity | 10% to 90% non-condensing |
| Certification | FCC, CE, IC, A-Tick |
| Warranty | 1 year limited hardware warranty |
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