@@Functions:
1. DTMF Call ID
2. Locked to specified operator, Cell lock, Interlock of phone and SIM/UIM card
3. Password Protect
4. Offer the function for trunk line in PBX: Dial tone, DTMF dial, Accelerative tone, Ring flow;
5. Make antipole signal connected to a billing machine;
6. Antenna gain external;
7. Low voltage shockproof protection technique
8. Long-distance network management
@@Technical Specification
@Air Interface Standard
-----Operating Frequency: GSM900/GSM1800Hz
@Frequency Ranges
---------------------Transmit ----------------Receive
GSM 900=== 890-915 MHz ------------- 935-960 MHz
GSM 1800 ==1710-1785 MHz ---------- 1805-1880MHz
1. Stability of Frequency: Superior to 2.5PPM
2. Dial tone frequency: 450Hz
3. Carrier interval: 200 KHz
4. Max out power: 33.0 dBm+-2dBm
5. Dynamic input range: -15 to -102dBm
6. Receiving delicacy: Class 2<=2% (-102dBm)
7. Max frequency error: +-0.1ppm
8. RMS phase error:<=5deg
9. Frequency selectivity:
---Receiving frequency: GSM 935MHz--------960MHz
===================DCS 1805MHz ------1880MHz
---Emission frequency: GSM 890MHz --------915MHz
===================DCS 1710MHz -----1785 MHz
@Connectors
1. Antenna connector
2. DC power input jack
3. One RJ11 connector to user for connection with other standard terminal
@Antenna
1. Dipole antenna
2. GSM 900/1800: 2 dBi dual band
3. Antenna gain: >1.5dB
@Operating Voltage: 4.6V DC
@Battery Backup
1. Re-chargeable NI-MH battery
2. Provide up to 3-4hours of air time or 12 hours of standby