Sell 12 port gsm voip gateway, multi-port gsm gateway

Description

Overview
There are three GSM Gateway models with VoxStack series GSM Gateway, the VS-GW*****4G, VS-GW*****8G and VS-GW***0 GSM series. The Modular Design GSM Gateways are ranging from 4 up to *0 GSM channels, developed for interconnecting a wide selection of codecs , including G.**1A, G.**1U, G.**9, G.**2, G.**3, G.**6 & GSM, to the GSM cellular networks to quickly reduce telecommunication expenses and maximize cost-savings. With the unique design of the VoxStack Gateway, it can support hot-swap for both SIM cards and GSM gateway modules. Users can simply add or remove the modules for hardware expansion or exchange. Each GSM gateway module runs an independent asterisk system inside.
The VoxStack gateway designs with a Lan Switch board that provides stackability on the hardware upgrade. It supports SMS messages sending and receiving and group sending and SMS to email. The GSM Gateways are **0% compatible with asterisk, Elastix, trixbox, 3CX FreeSWITCH sip server and VOS VoIP operating platform.
Technical Specifications:
�� 4/8/*6/*0 GSM Channels
�� 1 SIM card per GSM channel
�� 2 *0/**0M LAN interfaces
�� 4/8/*6/*0 Standard SMA-K interfaces
�� Storage temperature range: **0~*0?
�� Operation temperature range: 0~*0?
�� Operation humidity range: *0%~*0% non-condensing
�� Power source: 1U ATX power souce,******0V/**2A
�� Power: *6W
�� Dimension: *4cm � 4.5cm � *0cm
�� Weight:
VS-GW***0?***1g
VS-GWM**0G: **4g
Features:
�� SIP(RFC***1) compliance
�� DTMF Signaling support: RFC***3, Inband, SIP Info
�� Simple and convenient configuration via Web GUI
�� Multiple Languages
�� Codecs support: G.**1A, G.**1U, G.**9, G.**3.1, G.**2, G.**6, GSM
�� Echo Cancellation: ITU-T G.**8 LEC
�� Call Duration Limit
�� CLIR(Call Line Identification Restriction)
�� Call Waiting
�� Quad-Band GSM **0/**0/***0/***0 MHz & Band binding
�� SMS bulk transceiver, SMS automatically resend
�� SMS sent to Email
�� USSD transceiver
�� SMS remotely controlling gateway
�� IMEI number automatically modify
�� PIN identification
�� Open API interface?AMI?
�� Support diverse SIP, IAX2 protocols (coming soon)
�� Flexible routing settings & unlimited routing rules
�� Diverse extensible applications, such as IVR,DISA
�� Support configuration file backup and upload
�� Support for custom scripts, dialplans
�� Least Cost Routing(LCR),according to Time, Port, Calling Number
�� Support static IP and DHCP
Software & Platform:
�� Linux
The VS-GW***0 GSM series includes the following models:
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