ZYCOO-4GSM-U50-U100 4 GSM trunk module for SMS/Voice
Zycoo 4GSM trunk module SMS/Voice (for U50/100/P2) is designed with SIM900 for the global market, SIM900 is a quad-band GSM engine that works on frequencies GSM 850MHz, EGSM 900MHz, DCS 1800MHz and PCS 1900MHz.
4 GSM module supports CooVox-U50/ CooVox-U100 IP Phone System for GSM connection. Each port has one LED(Light-Emitting Diodes). Designed with SIM900 for global market, SIM900 is a quad-band GSM engine that works on frequencies GSM 850MHz, EGSM 900MHz, DCS 1800MHz and PCS 1900MHz.
Zycoo 4GSM trunk module SMS/Voice Specification
The Red LED indicates port status:
Solid Red = Module loading successful
Blink Red = Channel Ringing
If the LED is off, the GSM module is loading failure.
The Red LED indicates port status:
Solid Red = TE Model
The Green LED indicates port status:
Solid Green = NT Model
If the LED is off, the module is loading failure.
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