6. Appendix
6.1. Specification
6.1.1. Hardware
Item
VATA2020 GATEWAY
Adapter
(Input/Output)
Input: 100-240V
Output: 12V 1A
port
WAN
10/100Base- T RJ-45 for LAN
LAN
10/100Base- T RJ-45 for PC
Operation
Temperature
0
~
40
℃
Relative Humidity 10
~
65%
main chip
Ralink MIPS 24KEC (320MHz)
SDRAM
16M
Flash
4M
6.1.2. Voice features
Support SIP 2.0 (RFC3261) and correlative RFCs
Codec: G.711A/u, G.729a/b
,
G.726-32k
,
ilbc
Echo cancellation: G.168 Compliance in LEC, additional acoustic echo
cancellation(AEC) can reach 96ms max filter length in hands-free mode
Support Voice Gain Setting, VAD, CNG
NAT penetration, Support for STUN way through
SIP support SIP domain, SIP authentication(none basic, MD5), DNS name of server,
Peer to Peer/ IP call
SIP can register two SIP accounts, through the Pubic Server / Private server, users can
either account for inbound and outbound
Support call line automatically selected, when the public can not connect the server
when the server can automatically switch to the private call
DTMF Relay: support SIP info
,
DTMF Relay
,
RFC2833
SIP application: SIP Call forward/transfer
(
blind/attended
)
/hold/waiting/3 way talking/
Call control features: Flexible dial map, hotline, empty calling No. reject service, black
list for reject authenticated call, limit call, no disturb, caller ID, Flexible deer peer rule.
Support T.38 Fax
With the escape port (lifeline), can support power to answer and make phone calls
through the exit port can also be the system starts the call by dialing rules lifeline
Add voip unavailable features to automatically connect to the lifeline routes
Add busy when N / A lines of the 4 modes
Support IAX2
6.1
.3. Network features
WAN/LAN: support bridge and router model
Support PPPoE for XDSL
Support DHCP server in the LAN port