Goip 4 Ports Gsm Voip Gateway/Voip Sip Gateway / Goip4 Ip Gsm Gateway Support Sip/H.323/Imei Changeable

Type: VOIP Sip GSM Gateway with 4 Sims
Model Number: GOIP4
Channel: 4
SIMs supported: 4
Built-in SIP&H323: YES
Support VPN Encryption: YES
IMEI changeable: YES
Place of Origin: Guangdong, China (Mainland)
GSM Band frequency: GSM850/900/1800/1900Mhz
is_customized: Yes

Original DBL GSM VoIP Gateway(4SIMs)

Model: GoIP4

General Information:

The GoIP4 GSM VoIP Gateway enables direct routing between IP and GSM network without the

use of a FXO port or the PSTN network.It is the GSM network and the VoIP network connecting

seamlessly new poducts. Mobile phone SIM cards will be installed in the device, and GoIP4 users

can be achieved through the GSM network on the car aligh.It bulit-in SIP and H.323, configuration

flexibility. SIP can be thoroughly used when electricity came display numbers. With this GoIP4, the

usage of VoIP is greatly enhanced with significant savings on long distance and roaming charges.

1. Connection diagram:

• TCP/IP V4 (IP V6 auto adapt)
• ITU-T H.323 V4 Standard
• .2250 V4 Standard
• H.245 V7 Standard
• H.235 StandardMD5,HMAC-SHA1
• ITU-T G.711 alaw/ulaw, G.729A, G.729AB, and G.723.1 Voice Codec
• RFC1889 Real Time Data Transmission
• Proprietary Firewall-Pass-Through Technology
• SIP V2.0 Standard
• Simple Traversal of UDP over NAT (STUN)
• 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
• Out-band DTMF Relay: RFC 2833 and SIP Inf

• LINUX OS
• Built-in HTTP Web Server
• PPPoE Dial-up
• NAT Broadband Router Functions
• DHCP Client
• DHCP Server
• Firmware On-line upgrade
• PSTN Caller ID transmit
• Multiple Language Support
• Supported call divert
• Supported PSTN auto call out to PSTN
• Supported Multi_devices Cooperate Mode(Group Mode)
• Supported SMS call ou

• Characteristics of the hardware and Parameters
• Processor: ARM9E 133MHz
• DSP:VPDSP101-4 100MHz
• RAM :16M
• Flash :4M
• Power: DC12V/2000mA +-10% Input AC100V to AC240V
• GSM Module Type: Default 900M/1800M Optional 850M/1900M
• Consumption: The Maximum 5 W
• LEDs: RUN, GSM, LAN, PC,GSM
• Network Ports: 2 RJ45; Supported NAT 100/10BASE-T
• Weight :900 Grams Full Set
• Working Temperature: 0-40
• Working Humidity : 40-90 Not Congealed
• Colour : Grey
• GSM SIM Ports: 4
• VoIP Channels : 4

6. Application case:

A1: Inbound Call Centre for Customer Service

1.Inbound call centre is operated by a company to administer incoming product support or information inquiries from consumers.
2.This application requires customers to call in via a single phone number. Each GSM channel in a GoIP has its own phone number. In order to achieve calling in via a single number, GoIPs must be configured in a phone group mode with one GoIP as a host and the others as clients.
3.An incoming call to the host GoIP is automatically forwarded to an idle GSM channel in the phone group. The call is then routed to a call attendant via a VoIP connection.
4.Key advantages: quick setup, scalable, portable, low system cost, low operating cost especially used in cellular network no charge on incoming calls.

A2: Outbound Call Centre for Telemarketing / Solicitation

1.Outbound call centers are normally operated for telemarketing, solicitation of charitable or political donations, and debt collection etc.
2.In this application, only outgoing calls are made. GoIPs could be configured as SIP clients to registering to the SIP server / IP PBX or as a SIP Trunk to accept calls routed from the SIP Server / IP PBX.
3.Key advantages: quick setup, portable, scalable, low system cost, low operating cost.