Brand: GRANDSTREASM
Model: HT814 FXS gateway: 4 FXS ports Nat Router 
Telephone Interfaces: 4x FXS ports
Ethernet Ports: 2x 10/100/1000 Gigabit
NAT Router: yes, Gigabit
SIP Profiles: 4
Fax over IP: yes, T.38 compliant
Conferencing: 3-way
Audio Codecs: G.711 Annex I/II, G.723.1, G.729A/B, G.726, iLBC, Opus
QoS
Dimensions: 1.12" x 5.12" x 3.54"
12V power adapter
Ethernet cable
Quick installation guide
GPL statement
Dimension: 28.5 x 130 x 90 mm (H x W x D);
Weight: 0.29 kg