SIP phone support 3CX,elastix,asterisk broadsoft

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Specification

• Support SIP2.0 (RFC3261) and correlative RFCs
• SIP support 2 SIP servers, and backup SIP proxy servers
• Supports SIP UDP / TCP/ TLS
• SIP support SIP domain, SIP authentication (none, basic, MD5) , DNS name of server, Peer to Peer / IP Call
• WAN / LAN：10/100M Ethernet ports
• Bridge mode and route
• PPPoE for xDSL
• 802.3af POE（optional）
• VLAN（Voice VLAN/Data VLAN）
• 802.1X
• NAT (NAPT)
• NAT transverse :Support STUN client
• DHCP client on WAN/ DHCP server on LAN
• Main DNS and secondary DNS server
• DNS Relay
• SNTP Client
• Firewall and DMZ
• Web management access restricted
• VPN(L2TP/Open VPN)
• WEB ,telnet and LCD menu management
• Management with different account right
• Recover firmware and factory reset through POST mode
• Upgrade firmware via HTTP, HTTPS, FTP, TFTP
• DHCP option66 and custom option for auto provisioning
• Auto Provisioning to upgrade configuration file
with AES(256) encryption
• TR-069 and Syslog