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16 GSM channels
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Quad-band 850/900/1800/1900MHz
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Signal strength indicator, numerous LEDs provide operational status
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1 * RJ45 ports, support router and bridge mode
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Support SIP protocols, anti-block optional
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Balance alarm
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Caller number hide or display
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PIN and IMEI modified
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SMS batch receiving/sending, AT command compatible
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Custom IVR (25 seconds)
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White & Black list
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Echo cancellation, CNG and VAD
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Voice prompts, HTTP Web, Auto Provision support for configuration and update
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