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Quick Details

  • Place of Origin: Guangdong, China (Mainland)
  • Brand Name: TYH
  • Model Number: GOIP-8
  • Type: VoIP Gateway
  • calling center device: calling center device
  • protocol: SIP/H.323
  • voice codec: G711/G723/G729
  • support: USSD/IMEI change
  • compatible: compatible with asterisk and freeswitch
  • frequency: 850/900/1800/1900
  • warranty: 1 year
  • weight: 1.5kg
  • color: grey
  • sim slot: 8

Packaging & Delivery

Packaging Details sending with good packing
Delivery Time 3 days after payment
Big promotion change IMEI free 8 channel voip device 
Product Description


Big promotion change IMEI free 8 channel voip device bridges the GSM and the IP networks byenabling voice communications. It is installed on the Mobile SIM Card, you can register the GSM telephone on the VoIP Softswitch.it can be easily combined into arbitrary number of channels of Large Gateway Group. Low price, perfect sound quality and powerful function make GoIP GSM inevitable choice of system Integrators, traffic Business and soft switch Manufacturers.







Key Features

GOIP 8 ports open Standard VoIP Protocols (SIP&H.323)

Single or Multiple Server Registrations

Two 10/100 Ethernet for WAN / LAN connections

Peer-to-Peer IP Calls

Speech quality ensured by QoS at the Ethernet and IP layers and comprehensive jitter buffer

Line Echo Cancellation

VLAN and QoS support

NAT Transversal and Router functions

Voice prompts, HTTP Web, Auto Provision support for configuration and updates

Highly stable embedded Linux operating system in high performance ARM 9 Processor



Basic Features

LEDs for Power, Ready, Status, WAN, PC, FXS

Dial in mode or dial out mode only

Call forward from GSM to VoIP and VoIP to GSM

Dial Plan

Retransmit GSM Caller ID to VoIP terminal






Enhanced Features

Dynamic selection of codec

Advanced jitter buffer

Automatic traversal of NAT and firewall

GOIP 8 ports support VLAN / Qos


Echo cancellation for Speakerphone

Comfort noise generation (CNG)

Voice activity detection (VAD)

Auto provisioning (requires auto provisioning server)

GOP 8 port  support 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 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 - Simple Traversal of User Datagram Protocol (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

Operating temperature: 10°C to 40°C (50°F to 104°F)



Physical and Environmental


GOIP 8 port's storage temperature: 0°C to 50°C (32°F to 122°F)

Power: 12 VDC 2A (110V-220V) (AC/DC adapter included)

Warranty: one year

Packaging & Shipping




FAQ Explain 



1.What is main funtion of the 8 ports terminal gsm voip gateway




For call terminal




2.What is the software can be supported by GoIP?




VOS,VPS,VoIP switch,3CX,P·B·Xes,free PBX,MOR




3. What is the hardware can be supported by GoIP?




IPPBX and so on




4. What is the bandwidth requested by GoIP?




It is up to your voice code.G723 need 23kbps per channel,G729 need 34kbps,
G711 need 90 kbps




5. Is there any 32 ports or 64 ports GSM VOIP GATEWAY?




Each gsm port need 30-45 kpbs upload,and for adsl's upload bandwith is 512 kpbs. So max is 16 port ,our 16 port will come into the market in May.




6.What is the difference between the new GoIP(antena bulit in)and the previous GoIP?




The function is the same with the previous GoIP.The only difference is antena.




New GoIP antena is bulit in the board.




7.What is the communication network can be supported by GoIP?




GSM network




8. How about our service?




We have professional engineer to help you about all your tech problems anytime,the satisfaction of our customers is our greatest desire.




9,What is our main express shipment?




DHL,UPS,FEDEX,TNT,EMS(can ship to anywhere all over the world)





Our Services



>We provide strong tech support about VOIP server and A-Z termination. (6 days*12 hours)




>We can help you rent a VoIP server in USA.




>We can provide copy version VOS.




>We can install Relay server, SMS server,SMB server for you.




(for free)




>We can offer voip terminal guide.




>We may need your termina routes.




>We offer full tech support untill your gateway runs


Company Information


SKYLINE INTERNATIONAL COMMUNICATION Co., Ltd. was founded in 2002.We have 70 employees, 15 departments and more than 10 production lines. More than 200 

companies have established business with us, and they are from 40 different countries.  


Our company is a manufacturer of VoIP Gateways, GSM VoIP gateways, with well equipped testing equipment and strong technical force. With a wide range, good quality, reasonable prices and stylish designs, our products are extensively used in 

communication industry and other industries. Our products are widely recognized and trusted by users and can meet continuously developing economic and social needs.  


We welcome new and old customers from all walks of life to contact us for future business relationships and achieving mutual success! 

And we set up a new team for voice wholesale business two years ago. Currently there are five departments with professional teammates for voice business--Carriers Relations Dep, NOC Dep, Rate Dep, Billing & Finance Dep, customer Care De


We are carrying more than Twenty Million minutes international outbound and inbound traffic monthly and owning 200+ interconnections with Tier1 and Tier2 carriers. 

We mainly focus on Asia and Africa destinations and have more than 20 direct routes such as Pakistan, Vietnam ect. 

 We sincerely welcome all VOIP interconnection. 



Dear friend,we also deal with a to z route,


if you want to buy or sale your route,please feel free to


contact me !!



if you meet any question after buy our device, don't


hesitake to let me know 


we have professional engineer provice free guide to 








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