• Simultaneously performs TDM circuit emulation over enterprise or carrier packet-switched Ethernet L2/L3 networks for 4, 8 or 16 E1
• At the Ethernet line side supports both electrical Fast and optical 100 FX Ethernet interface
• Multiprotocol encapsulation supporting IPv4, IPv6, UDP, RTP, L2TPv3, MPLS and Metro Ethernet
• Compliant with IETF, ITU-T, MFA Forum and Metro Ethernet Forum Technical Specifications
• Recovered clock jitter and wander compliant to ITU-T G.823, G.824. Supports adaptive clock recovery, differential clock (common clock) (using RTP), external clock
• Lost/misordered packet compensation
• FTP4/816 provide traditional leased-line and TDM switched services transparently over IP with higher voice quality with much lower latency than VoIP and can support all applications that run over E1 circuits, not just voice

Data sheets (pdf): FTP16 (Serbian), FTP16 (English)