ZYCOO CooVox series are: U20, U50, U60, U80, U100
This listing is only for U50+2GSM+2FXO2FXS, please feel free to contact me if you need 4GSM, 4FXO,4FXS or other models.
About ZYCOO CooVox series
About ZYCOO CooVox-U50
CooVox Telephony Modules information:
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