GOIP-4 GSM voip gateway 4 channel GOIP support IMEI change sim bank SMS server

Description

Notice:
1) Kindly tell me your
telephone number
to speed up shipment arrangement.
2) Buyer is reponsible for clearance and import duty at destination port.
3) We can put lower value at commercial invoice if you request declaring lower value.
4) The item is 100% new !
Overview
The GOIP-4 is a 4 SIM Cards Quad band GSM Gateway which connect the GSM and the VOIP seamlessly. You can register the GSM telephone on the VOIP Softswitch.The GOIP-4 support SIP and H.323 protocal . Flexible routing can meet the need of all kinds of call forwarding; even more special is that GOIP-4 support multi-device group, it can be easily combined into arbitrary number of channels of Large Gateway Group.
Product name: Voip GSM gateway
Model: GOIP-4
SIM channels: 4 ports
Work frequency:GSM 850/900/1800/1900mhz / It work on 2G network .
Support ITU H.323 V4 and IETF SIP V2
Support IMEI change
Support Sim Bank
Support SMS server
support multi-device group
Warranty: one year
Key Features:
--The GOIP-4 supports Open Standard VoIP Protocols (ITU H.323 V4 and IETF SIP V2)
--Support Caller ID for using SIP
--It Support Single or Multiple Server Registrations
--With Two 10/100 Ethernet circuits connect to the LAN and an additional device
--GSM module for making GSM calls
--Speech quality ensured by QoS at the Ethernet and IP layers and comprehensive jitter buffer
--Support VLAN and QoS
--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, GSM
--Call forward from GSM to VoIP and VoIP to GSM
--Dial in mode or dial out mode only
--Dial Plan
--Password protection for both GSM dial in or dial out
--Retransmit GSM Caller ID to VoIP terminal
Enhanced Features:
--Dynamic selection of codec
--Advanced jitter buffer
--Automatic traversal of NAT and firewall
--VLAN / Qos
--Router
--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 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
Physical and Environmental:
--Operating temperature:
10°C
to
40°C
(
50°F
to
104°F
)
--Storage temperature:
0°C
to
50°C
(
32°F
to
122°F
)
--Weight:
500 g
(
1 lb
) (Including AC/DC Adapter)
--Size:
160 mm
(W) x
252 mm
(L) x
30 mm
(H) (Width x Length x Heigth
--Power: 12 Vdc
2A
(AC/DC adapter included)
Warranty: one year
Return/Exchange Policy
We do our best to serve our each customer.
If buyer confirm the item can`t work well due to the non-
artificial factors
,buyer can return it to me
. Buyers should keep it with proper packaging.
Buyers are responsible for return to china shipping fee .
Within one month We will replace it with a new one when we receive the returned items. Within one year we will repair the item for you.
We will ship the replaced one or repaired one to you and we will pay the shipping fee.
Please contact me first before returning by ebay message.
Contact
We always try our best to make sure that the buyers have a happy purchasing experience .
we appreciate your support to my store, if you are satisfied with our service, please let me know and leave positive feedback.Your recognition and support will make us more confident to develop business and serve you better. Thank you very much !
If you don’t satisfy with the items we will do our endeavor to resolve the issues you might have. Please contact me first before open an dispute case or leaving negative feedback . So please give me the opportunity to resolve any problems.thank you!
OEM (Print your logo) :
-We can print your logo on the cards (OEM) if you need.
-It is free .
-MOQ with your Logo is 50+ units