Product Details

4 ports goip gsm gateway for call termination to make routes business

VoIP GSM Gateway GoIP-4 GoIP is a VoIP GSM Gateway for call termination (VoIP to GSM) and origination (GSM to VoIP). It is SIP&H.323 based and compatible with Asterisk, Trixbox, 3CX, SIP Proxy Server, VoipBuster. It can enable to make 1/4/8/16 calls simultaneously from IP phones to GSM networks and GSM networks to IP phone.
Key Features	4 GSM channels, up to 4 SIM cards
	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 id caller id caller 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
4 port gsm gateway goip4
Enhanced Features	LEDs for Power, Ready, Status, WAN, PC, GSM
	Dial in mode or dial out mode only
	Call forward from GSM to VoIP and VoIP to GSM
	Dial Plan
	Password protection for both GSM dial in or dial 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)
	On line firmware upgrade
	Multi-language support: English and Chinese

Supported Standards	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

Free Software	SMS Server
	SIM Server ( Sim Bank Scheduler Server )
	Relay Server
	Remote Access
goip4
Technical Specifications	Protocols: SIP/H.323
	DTMF sending: REC2833
	No. of voice channels: 4
	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
4 port gsm gateway goip4
Hardware Specifications	Processor: ARM9E 133MHz
	DSP: VPDSP101-4 100MHz
	Memory: RAM 16MB/ Flash 4MB
	GSM Module: 850MHz, 900MHz, 1800MHz, 1900MHz
	Power: 12 VDC 2A (110V-220V) (AC/DC adapter included)
	Power consumption: 15W 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: 195mm (W) x 340mm (L) x 60mm (H)
	Weight: 1KG (Including AC/DC Adapter)
	Warranty: one year