Voip call Traffic Goip32 32 ports voip pstn gateway with factory price in China

32 GSM channels, up to 32 SIM card

For call termination (VoIP to GSM) and origination (GSM to VoIP)

Standard SIP & H.323 protocol, Communicates with other gateway or PC

Quad band, IMEI changeable, Remote Access

Support of SMB32 SIM Bank

Optional SMS termination

Allows your program send/receive SMS with AT command

Easy to install and administrate

Auto Balance and Recharge

Auto BTS changeable

Support one stage dialing

Support free mode-two stage dialing and assigned mode-one stage dialing

Call Back feature

All functions can be set on web

Provide CDR

ITU: H.323 V4, H.225, H.235, H.245, H.450

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 UDP Through Network Address Translators (NATs)

RFC 3891 - SIP “Replaces” Header

RFC 3892 - SIP Referred-By Mechanism

draft-ietf-sipping-cc-transfer-04 - Session Initiation Protocol Call Control Transfer

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)

User account authentication using MD5

SMS Server

SIM Server ( Sim Bank Scheduler Server )

Relay Server

Remote Access

Protocols: SIP/H.323

DTMF sending: REC2833

No. of voice channels: 32

TCP/IP: IP/TCP/UDP/RTP/RTCP/,CMP/ARP/RARP/SNTP,

DHCP/DNSClient,IEEE802.1P/ Q.ToS / DiffServ,

NAT Traversal, STUN, uPnP,

IP Assignment, Static IP, DHCP, PPPoE

VoIP codec: G.711 PCM A-law/u-law (selectable)

G.729 Annex CS-ACELP at 8 kb/s

G.723.1 MP-MLQ/ACELP at 6,3/5,3 kb/s (optional)

Voice Quality, VAD, CNG, AEC, LEC, Packet loss

Network bands: GSM850/900/1800/1900MHz

Configuration way: WEB interface

Processor: ARM9E 133MHz

DSP:VP-101-1 196MHz

Memory: RAM 16MB/ Flash 4MB

GSM Module: 850MHz, 900MHz, 1800MHz, 1900MHz

Power: 12 VDC 4.5A (110V-220V) (AC/DC adapter included)

Power consumption: 30W 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)

Size: 500mm (L) x 280mm (W) x 160mm (H)

Weight: 6.5KG (Including AC/DC Adapter)

Warranty: one year