Channels:

16 channels

Frequency

GSM: 850/900/1800/1900MHz

SIP Specification

SIP/2.0 RFC3261

Session Timer RFC4028

STUN

Network Protocols

DHCP/PPPoE/VPN(pptp)

NTP

Telnet/HTTP/FTP/TFTP

Encryption:VOS2000,RC4,XOP.Base64

Telephony Features

Hot-line call ,Dial plan, Speed dial, Phone book, CDR, LCR, White/

Black list

Telephony Signaling

DTMF tone dectection/generation

DTMF relay: in-band, RFC 2833 and SIP info

Call forward: unconditional, no answer and busy

N-way conferencing

Caller ID display/generation, Mobile Number Portability

Voice Capability

Voice codecs:G729a/b/e,G723.1,G.711 A/U law

Echo cancellation

Silence suppression & detection(VAD, CNG)

Adaptive jitter buffer

Volume adjustable

IVR customized

Number of Ports

1 WAN 10/100Base-T Ethernet(RJ-45 connector)

1 LAN 10/100Base-T Ethernet(RJ-45 connector)

1 Console(USB)

LEDs

1 Power and 16 groups of card online and running status indicator

Power Supply

100-240VAC, 50 - 60 Hz IN, 12V/5A OUT

Operating Environment

Operating temperature: 0 - 50oC

Operating humidity: 10 – 90%RH

Warranty

12 Months(1year)