HL-57T high quality 4G wireless fixed phone with 1000mAh Li-ion battery supports call forwarding, call hold and call barring.
Smart LTE fixed wireless telephone for office and home supports VOLTE.
Digital 4G desktop cordless phone with sim card slot.
| Items | Feature | Description | |
| Hardware | Basic Features | Model Name | HL-57T |
| Frequency Band | GSM/GPRS/EDGE(GSM): 900/1800MHz | ||
| UMTS/HSPA+(WCDMA): 900/2100MHz | |||
| FDD-LTE: B1/3/8/28AB | |||
| Baseband | UMS9117 | ||
| Antenna Interface | TNC antenna | ||
| Internal Memory | 128MB+64MB | ||
| TF Slot | Support upto 32GB | ||
| LCD | 128*64 Pixels | ||
| External Interface | USB port | Mini type, V2.0 | |
| DC Connector | 5 V/1.0A | ||
| Power Switch | Soft Power key | ||
| Battery Connector | 3 PIN connector | ||
| SIM interface | Standard 6 pin,1.8v/3.0V SIM Card | ||
| Antenna Connector | TNC | ||
| Environment Specification | Operating Temperature | -10ºC to 40ºC | |
| Storage Temperature | -20ºC to 65ºC | ||
| Operating Humidity | 10～95％ | ||
| Antenna | Interface | TNC | |
| Voltage standing wave ratio | <3.0 | ||
| Input resistance | 50Ω | ||
| Per carrier width | 1.25MHz | ||
| Accessories | Battery | Type | Li-Ion, |
| Capacity | 1000 mAh | ||
| Voltage | 3.7V | ||
| Talk time | About 3.5 hrs (Depending on network) | ||
| Standby time | About 150 hrs (Depending on network) | ||
| Power Adapter | Input Voltage | AC, 100~220 V | |
| Frequency | 50~60HZ | ||
| Output Voltage/Current | 5V/1.0A | ||
Software Specifications |
General Features | Network type | FDD, TDD, WCDMA, GSM |
| Band class | GSM/GPRS/EDGE(GSM): 900/1800MHz | ||
| Maximum Output | UMTS/HSPA+(WCDMA): 900/2100MHz | ||
| Baseband | FDD-LTE: B 1/3/8/28AB | ||
| Data speed | FDD/TDD: Power Class 3 (23±2.7dBm) | ||
| Sensitivity | WCDMA: Power Class 3 (+24dBm +1/-3dBm) | ||
| Internal Memory | GSM/GPRS 900MHz: Power Class 5 (+33dBm ±2dBm) | ||
| RAM | GSM/GPRS 1800MHz: Power Class 0 (+30dBm ±2dBm) | ||
| Voice code | UMS9117 | ||
| AMR Code | UMTS: Uplink 5.72Mbps/Downlink 21.6Mbps | ||
| SRVCC | FDD: Uplink 50Mbps/Downlink 150Mbps | ||
| SIM Tool Kit (UTK) Functions | FDD/TDD LTE: ≤-95 dBm | ||
| SIM card single / double card | WCDMA900/2100: ≤-108dBm | ||
| Language. | EGSM900/DCS1800: ≤-108dBm | ||
| Input method | 128MB | ||
| SMS Storage capacity. | 64MB | ||
| Contact capacity | FR/EFR/HR/AMR | ||
| Group SMS | Support | ||
| Alarm | Support | ||
| Clock | Support | ||
| Calculator | Optional | ||
| DTMF | English Default, or customize by buyer | ||
| Auto Redial | As per Language | ||
| Speed dial | 200 items | ||
| Caller ID | 200 items | ||
| Backlight Time | Support | ||
| Call duration | Support | ||
| Bluetooth | Support | ||
| LCD | Support | ||
| LCD backlight adjustment | Support | ||
| Programmable ring volume control. | Support | ||
| Programmable voice volume control | Support | ||
| Hands- free mode | Support | ||
| Speaker volume control in hands free operation. | Support | ||
| Key tone volume adjustments | Support | ||
| Missed calls & incoming message indication on display | Optional, default no | ||
| Network Dependent Features | Call Forwarding | Support. Network Dependent. | |
| Call wait/call hold | Support. Network Dependent. | ||
| Conference call | Support. Network Dependent. | ||
| Call barring | Support. Network Dependent. | ||
| Supports VOLTE | Support | ||
| Display | Key digit input display | Support | |
| Banner Display | Not Support | ||
| Time Display | Support, the time and date format is adjustable | ||
| Operator name display | Support | ||
| Display icon | RSSI Indication | Support | |
| No Service/ Service Indication | Support | ||
| Voice call Indication | Support | ||
| Power status indicator | Support | ||
| Alarm Indication | Support | ||
| New SMS Indication | Support | ||
| Voice Message Indication | Support | ||
| Tone and Sound Generation | Tone type | MIDI | |
| Busy tone | Support | ||
| Ringer tone | Support | ||
| Incoming call alert | Support | ||
| Ring tone volume adjustments | Support | ||
| Ring tone selection | Support | ||
| SMS Receive Alert | Support | ||
| Keypad tone | Support | ||
| Lock function | Lock Cell | Support | |
| Lock Operator | Support | ||
| Lock Pin / SIM Card | Support | ||
| Tools | Download tool | Support | |
| FOTA | Support |
