1. Wi-fi hotspots are supported
2. 4GB VoLTE voice, enabling voice calls based on traffic
3. support FM radio, SMS, MP3
4. SIM card support to reduce calls
5. SD card support
4G/VoIP Dual-Mode WiFi Wireless Phone
JR403-GP fixed telephone is a multi-functional communication terminal, which is a VOIP terminal product with high practicality and manageability for voice communication on IP networks. It can be used in extensions and network IP telephone operating networks within the enterprise and has Internet access Users. It can connect to the operator’s 4G network, and the communication cost is extremely low with the support of the operator. It can also be used as a communication tool with high cost performance, high stability, and most in line with traditional usage habits in various private networks.
1. WI-FI hotspots are supported
2. 4GB VoLTE voice, enabling voice calls based on traffic
3. support FM radio, SMS, MP3
4. SIM card support to reduce calls
5. SD card support
Technical Specifications
4G/VoIP Dual-Mode WiFi Wireless Phone
Item | Specification |
LCD size | 2.4 |
LCD Color | Color |
Platform | Spreadtrum 9820e |
Network | 4G All-Netcom(adjusted for different countries and regions) |
Frequency | FDD-LTE: B1/B3/ B7/B20/B28A |
TDD-LTE: B38/B39/B40/B41 | |
WCDMA: B1/B2/B5/B8 | |
GSM: B2/B3/B5/B8 | |
WIFI | Support IEE802.11b/g/n |
Bluttooth | Ble 4.0 |
Battery | 1000mAh |
Antenna | External TNC or Built-in Antenna |
Power Supply | Micro usb 5V input |
Main Function | WIFI Hotspot, VoLTE Voice, MP3 FM Radio, SMS, Make/receive calls, |
Hands free, speed dial, call forwarding, weather forecast, etc | |
Antenna interface | Integrated/TNC detachable antenna (optional) |
Standby | Standby:120hrs talking time<5hrs |
Power supply | DC 5V/1A |
Battery | 3.7V/1000mAh |
Accessory | Wire coil,handset,power adapter,back-up battery,user manual |
VOIP parameters of this device
This device is a standard SIP protocol, which is perfectly compatible with all PBX sip servers on the market
SIP Protocol | SIP 2.0 (RFC3261) |
Transmission protocol | UDP/TCP/TLS |
DTMF | In-band, Out-of-band(RFC 2833) and SIP INFO |
Audio coding | G.722/G.729/AMR/AMRWB/GSM/PCMA/PCMU/SPEEX/ILBC/DTMF/ISACWB/OPUS |
Audio function | AEC/VAD/CNG/AGC/ANS |
SRTP | NONE/FORCE/PREFER |
3GPP | TS 24.605 |
Call transfer support | support |
STUN | support |
SIP line | 3 lines |