Key
features:
Provide 4
cellular
channels
for
IP-PBX
Support
open
standard
SIP
Protocols
(IETF
SIP V2)
Support
SIP
proxy
mode
Multiple
grouping
mode
Two
10/100
Ethernet
ports
for the
LAN and
an
additional
device
Quad
band GSM
module:
support
GSM 850MHz,
900 MHz,
1800
MHz,
1900MHz
Speech
quality
ensured
by QOS
at LAN,
IP
layers
and
comprehensive
jitter
buffer
VLAN and
QOS
support
NAT
Transversal
Voice
prompts,
HTTP Web
Highly
stable
embedded
Linux
operating
system
in high
performance
ARM 9
Processor
Enhanced Features
LEDs for
Power,
Ready,
Status,
WAN, PC,
GSM
Call
forward
from GSM
to VoIP
and VoIP
to GSM
Dial in
mode or
dial out
mode
only
Dial
Plan
Password
protection
for
dialing
in or
dialing
out
Retransmit
GSM
Caller
ID to
VoIP
terminal
Dynamic
selection
of codec
Advanced
jitter
buffer
Automatic
traversal
of NAT
and
firewall
VLAN /
QOs
Echo
cancellation
for
Speakerphone
Comfort
noise
generation
(CNG)
Voice
activity
detection
(VAD)
Auto
provisioning
(requires
auto
provisioning
server)
Firmware
upgrade
from GUI
Supported
Standards
RFC 1889
- RTP/RTCP
RFC 2327
- SDP
RFC 2833
- RTP
Payload
for DTMF
Digits,
Telephony
Tones
and
Telephony
Signals
RFC 2976
- SIP
INFO
Method
RFC 3261
- SIP
RFC 3264
-
Offer/Answer
model
with SDP
RFC 3515
- SIP
REFER
Method
RFC 3842
- A
Message
Summary
and
Message
Waiting
Indicator
RFC 3489
(STUN) -
Simple
Traversal
of User
Datagram
Protocol
(UDP)
Through
Network
Address
Translators
(NATs)
RFC 3892
- SIP
Referred-By
Mechanism
Proprietary
Firewall-Pass-Through
Technology
Codec:
G.711
(A/µ
law),
G.729A/B,
G.723.1
DTMF:
RFC
2833,
In-band
DTMF,
SIP INFO
Web-base
Management
PPP over
Ethernet
(PPPoE)
PPP
Authentication
Protocol
(PAP)
Internet
Control
Message
Protocol
(ICMP)
TFTP
Client
Hyper
Text
Transfer
Protocol
(HTTP)
Dynamic
Host
Configuration
Protocol
(DHCP)
Domain
Name
System
(DNS)
User
account
authentication
using
MD5
Memory:
RAM
16MB/
Flash
4MB
GSM
Module:
Type:
850MHz,
900MHz,
1800MHz,
1900MHz
Power:
Input
AC100V ~
240V,
output
12 Vdc
2000 mA
Power
consumption:
5W
maximum
Operating
temperature:
10＜C to
40＜C
(32＜F to
104＜F)
Storage
temperature:
0＜C to
50＜C
(32＜F to
122＜F)
Working
Humidity:
40% ~
90% Not
congealed
Weight: 0.9kg
(3 lb)
(Including
AC/DC
Adapter)
Size:195mm
(W) x
340mm
(L) x
57mm (H)
Power:12
V 2A .
