4 Port 3G GSM Gateway, For Office, Voltage : 12VDC

It comes with four GSM/3G SIM support systems in a compact design. This device enables integrated GSM/3G connectivity and open standard SIP support that connects easily with IP phones, IP-PBX software and hosted SIP trucking services. It is perfect to maintain communication between remote stations and main offices.
Features :

• Available with 4, 8, 16, 32 port GSM channels
• GSM: Quad-band 850/900/1800/1900MHz
• CDMA: 800MHz
• Easy to Conduct SIM Rotation Locally
• Built-in Bandwidth Saving
• Signaling & RTP Encryption
• HTTP API for SMS integration
• Auto Update SIM Number and Balance Check
• No Balance Alarm
• Flexible Dial Rules and Manipulation Rules
• USSD, Open API for SMS/USSD
• BCCH
• PIN Code Management
• Remote SIM Card Management (SIM Cloud)

Specification :

• Silence Suppression
• Comfort Noise Generator(CNG)
• Voice Activity Detection(VAD)
• Protocol: SIP v2.0, RFC3261
• SIM Interface: 1.8v, 3.0v SIM Interface
• SMS Send and Receive
• SMS to Email
• Call Waiting/Call Back
• Call Forward
• Calling Type: Mobile to VoIP, VoIP to Mobile
• Signaling & RTP Encryption
• IVR Customization
• Configure Backup/Restore
• VoIP Call Statistics
• Power Supply: 100-240VAC,50-60Hz

Applications :

• Compatible for SMEs and small industries
• For communicating projects over remote locations
• Compatible for small offices
• Small industries
• Good for retail shops and mega stores