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Voice Features
Support SIP 2.0
and correlative RFCs
Support IAX2
(optional)
SIP supports 2
SIP servers, pubic and private server. Can connect
to public SIP server and private SIP server at the
same time
Codec: G.711A/u,
G.729,G.729a/b, G.726-32k
Support Voice
Gain Setting, VAD, CNG
NAT transverse:
support STUN client
SIP support SIP
domain, SIP authentication (none, basic, MD5), DNS
name of server, Peer to Peer/IP call
Support choose
line automatically, using private server to dial
automatically when public server disconnected
DTMF Relay:
support inband, SIP info, RFC2833
SIP application:
support call forward/ transfer/ holding/ waiting/
conference
Call control
features: flexible dial map, hotline, empty calling
No. reject service, black list for reject
authenticated call, limit call, no disturb, caller
ID
Support voice
record on SIP server
Answer or make
PSTN call when power is up
Lifeline support
: switch to PSTN call automatically when internet
failed or power is off
Support T.38
Network
Features
WAN/LAN: support
bridge and router model
Support PPPoE for
xDSL and auto reconnect after disconnected by server
Support basic NAT
and NAPT
Support DHCP
client on WAN
Support DHCP
server on LAN
Support UPnP
Support IGMP
Proxy/IGMP Snooping
Support ping test
with keypad-command
Support main DNS
and secondary DNS server
Support DNS
Relay/ PPPoE Relay
Support NTP
Client
Support Firewall/
Stateful Packet Inspection(SPI)
Support Webs URL
Filter/Content Filter
Support
MAC/IP/Port Filter
Support VPN
(L2TP/PPTP)
Support
VLAN(802.1Q/P) and VLAN Switch mode
QoS with
DiffServ(Optional)
Support Virtual
Server
Maintenance
and Management
Web management
Management with
different account right
Upgrade firmware
through POST mode
Upgrade firmware
through HTTP, FTP or TFTP
Auto Provisioning
Safe mode provide
reliability
Support Auto
Provisioning(upgrade firmware and configuration
file)
Support Syslog
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