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1 x GSM Module for U20
1 GSM trunk module for SMS/Voice (For U20 only)
Description:
- Compatibility: U20 IP Telephone System
- LED: 1
- Temperature: 0°C ~ 40°C
- Humidity: 5% ~ 95% Non-condensing
- Size: 30 x 51 (mm)
- Certificates: CE; FCC; RoHS