Grandstream HT ATA 881 | VoIP | Analog Gateways

Ethernet LAN (RJ-45) ports: 2 | Modem (RJ-11) ports: 8 | Operating temperature (T-T): 0 - 40 °C | Conference call: Yes | Height: 190 mm | Dimensions (WxDxH): 120 x 180 x 36 mm | LED indicators: LAN | LED indicators: Power | Weight: 460 g | Operating relative humidity (H-H): 10 - 90% | Fax compatibility: T.38 | Caller ID: Yes | LED indicators: WAN | Voice codecs: G.729B | Width: 100 mm | Voice codecs: G.729A | Voice codecs: G.711 | Voice codecs: G.726 | Reset button: Yes | Voice codecs: G.723.1 | Quality of Service (QoS) support: Yes | Storage temperature (T-T): -10 - 60 °C | Call waiting: Yes | Depth: 28 mm | Security algorithms: AES | Security algorithms: HTTPS | Security algorithms: SSL/TLS | Security algorithms: SIPS