GSM to PSTN Gateway

GSM/PSTN Fixed Wireless Terminal with LCR
Brand: Etross or OEM brand
Model No.: Etross-8848 GSM/pstn
Product name: GSM/PSTN Fixed Wireless Terminal with LCR
Frequency: Dual band: 900/1800MHz, Quandband: 850/900/1800/1900MHz
Description:
Etross-8848 GSM/PSTN FWT with LCR has the function to choose route automatically.
When you dial out from your"Etross-8848 GSM/PSTN FWT", it will check the prefix no. You preset into the device, then it will call out through GSM or PSTN according to the presetting rules and GSM/PSTN both support call in.
When you are in phone call through GSM line, and at the same time another call to pstn no., the caller will hear busy tone, and vice versa
It will dial out from your mobile without distinguishing if you don't connect the PSTN line, and it will dial out from your PSTN without distinguishing if you don't insert SIM Card or GSM network no signal.
Features and Functions:
1. Auto-select economic route (Low cost routing-LCR function)
2. GSM isn't ready, call will be forced to dial out from PSTN.
3. When not connecting to PSTN line, GSM will provide the forced dial-out function
4. Simple to install and easy to maintain
5. Steady module and reliable design ensures good performance
6. Provides optimized circuit directly connecting the exchange device for extensions
7. Compatible to most telephone, PBX device
8. Strong signals with high gain antenna
9. Attractive plastic casing
10. SIM card supported (1.8V, 3V)
11. Caller ID display
12. Provides reversal polarity signal for metering
13. No noise and clear voice
14. Suitable for all kinds of weather and environment
15. Suitable for wide voltage range and low power consumption
16. RJ-11 ports (1 FXO for PSTN and 1 FXS port)
17. Locking PIN/network (optional)
Specification
1. Air interface standard: GSM 900/1800MHz phase 2+
2. Frequency ranges:
A), GSM 900:
I) Transmission: 890~915MHz
II)Reception: 935~960MHz
B), GSM 1800
I)Transmission: 1, 710~1785MHz
II)Reception: 1, 805~1880MHz
3. Channel space: 200KHz
4. User line, bell signal: In line with GB/T15279
5. Max power: 0.25W / 0.5W
6. Consumption:
A)Immobility: Less than 25m Ah
B)Transmission: Less than 400mAh
7. Sensitivity: -105dB
8. Dial tone frequency: 450MHz (standard)
9. Surrounding temperature: -10C~+40C
10. Relative humidity: 45%~90%(without frost)
11. Atmosphere pressure: 86~106KPa
12. Environment noise: <60dB
13. Antenna amplifying: 3.5dB(omni directional), 12dB(certain direction / chosen direction)
14. AC power: DC 10V-20V
15. Input: AC100-230V, 50/60Hz
16. Output: 12V 1A
17. Switching type / transformer type AC adapter (optional)
18. Connector of power:
19. Dimensions (L*W*H)(average): 185*135*22mm
20. Weight: FWT: 450g
Full set with AC adapter, antenna and box: 750g
21. Colors: White / black (optional)
22. Connection mode: RJ-11 phone sockets.
23. Antenna connection: SMA antenna connection