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GSM Volp Gateway
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Features
Auto Update SIM Number and Balance Check
Available with 4, 8, 16, 32 port GSM channels
Built-in Bandwidth Saving
CDMA: 800MHz
Easy to Conduct SIM Rotation Locally
Flexible Dial Rules and Manipulation Rules
GSM: Quad-band 850/900/1800/1900MHz
HTTP API for SMS integration
PIN Code Management
Remote SIM Card Management (SIM Cloud)
Signaling & RTP Encryption
USSD, Open API for SMS/USSD