Feature Highlights include: 2 VoIP accounts 2 VoIP accounts 5-way conferencing Codecs: iLBC, G.722, G.711(A/?), GSM_FR, G.723, G.729AB, G.726-32, OPUS Dual 10 /100 Network PoE Power adapters also available under 'Accessories' for non-POE deployments. Native VPN support to FreePBX FreePBX Phone Apps and End Point Manager license included Free of Charge for Sangoma Phones. Box Size 24,1 cm ( 9,5 inch ) X 20,3 cm ( 8 inch ) X 10,2 cm ( 4 inch ) and weight of 2.5 lbs.