Features:
1. 4G+VOIP dual-mode fixed-line, SIP line, 4G full Netcom, voice mail, call transfer
2. 2.4-inch color screen design, strong color perception, clear viewing, and more comfortable use
3. Can register 3 SIP accounts, support account switching freely
4. Can insert 2 SIM cards, support 4G full Netcom
5. When either of the 4G phone and the VOIP phone is connected, the other party can also call in
6. Support Volte high-definition calls, you can imagine high-definition sound quality without the microphone close to the ear.
7. One-button hands-free calling, free your hands, chat freely, and do whatever you want
8. Support 3-party audio conference, you can add members to join at any time, making communication more convenient
9. 3 groups of fast dialing, 8 custom programmable function keys can be set to frequently used numbers, one-key call out, convenient for office and elderly use
10. Call transfer: In the process of making or answering a call, if you need to transfer the call, click the transfer button to transfer the call with one key, which is fast and worry-free
11. Call hold: During a call, if it is inconvenient, you can press the call hold button, the call will not end, press the hold button again, and the call will continue
12. Support voice message, voice message reminder, you can check the voice message at any time
13. Do-not-disturb mode can be set, when someone calls in, it will not ring, but the call information will still be recorded
14. Turn on the WIFI function, you can quickly and easily find the WIFI signal and connect to the network.
15. Plug in the 4G mobile phone card and turn on the mobile network, connect the phone to the computer that is not connected to the Internet through a network cable, and then the computer can use the shared network of the phone to access the Internet normally
16. Use the 4G card traffic to turn on the portable WLAN hotspot, and other devices can quickly and easily find the hotspot signal
17. Web-side remote management: support browser remote management (port number 8080), the computer can remotely log in to the phone through the browser to complete various settings such as initialization settings and maintenance

Parameter:
1. SIM card: standard SIM card
2. LCD display: 2.4 inch color screen
3. WIFI AP: 802.11b/g/n2.4G
4. DTMF function: RFC 2833, SIPINFO
5. Network protocol: HTTP/TR069/RTP/SRTP
6. Phone book: support 500 contacts
7. Quick dial: M1-M3 2-9 number keys
8. Scope of application: home, office, medical care, hotel, catering, transportation, etc.
9. Voice message: unread voice message reminder
10. Call records: support 50 records
11. Power supply mode: USB charging/built-in lithium battery
12. Battery capacity: 1000mah

Audio function:
1. G.722/G.729/AMR/AMRWB/GSM/PCMA/PCMU/SPEEX/ILB/DTMF/ISACWB/OPUS
2 Support high-quality audio calls
3. VAD/CNG/AGC/ANS/AEC

SIP function:
1. Support SIP 2.0 (RFC3261)
2. Support 2-way SIP account
3. Support SIP UDP/TCP/TLS

Phone function:
1. Add/delete contacts, missed call reminder
2. Do Not Disturb, Auto Answer
3. Call forwarding/busy forwarding/unconditional forwarding

Features:
1. Support PSTN/SIP Support a fixed telephone line and 6 SIP lines, switch lines with one key, and manage multiple calls at the same time
2. Support multi-party audio conference, you can add members at any time, making communication more convenient
3. Support manual recording/automatic recording/voice message, the recording time can reach 2000 hours, and the recording files can be exported in batches on the WEB side
4. SIP blacklist management: You can set harassing calls to the blacklist, and the phone will automatically block the number. At the same time, it is also possible to filter serial numbers with the same beginning/end.
5. Address book import/export/LDAP/PNP: Support bulk import and export of address books on the WEB side, and at the same time, it can also automatically synchronize/update the address books of all phones in the same LAN
6. Fast dial + programmable keys: 3 groups of fast dial, 9 programmable function keys, personalized settings, making the operation more convenient.
7. Remote management on the WEB side: support remote management of the browser (port number 8080), and the computer can remotely log in to the phone through the browser to complete various setting maintenance such as initialization settings/TR069
8. Call transfer: When you make a call, click the option button to select transfer, and you can transfer the call with one click, which is fast and worry-free
9. Call hold: During the call, if it is inconvenient, you can press the hold button, the call will not end, press the hold button again, and the call will continue

Parameter:
1. LCD display: 3.5 inches 320x480 IPS
2. Operating system: Android 7.1
3. Built-in WIFI: 802.11 b/g/n 2.4G (optional)
4. USB 2.0 interface: Micro usb
5. RJ45 network port: 10/100M
6. RJ11 telephone interface: support DTMF/FSK to display and dial
7. PSTN phone functions: hands-free/handle/DTMF button/flash/recording
8. SIP account: 6 accounts
9. Function description: support VOIP voice calls, multi-party audio conferencing
10. Voice coding supports PCMU, PCMA, G729, G723, GSM, SILK, ISAC, speex, ILBC, AMR, opus, etc.
11. Recording: support
12. Handle: RJ9
13. Power supply: 12V1A
14. Scope of application: home, office, medical care, hotel, catering, transportation, etc.
15. Power supply mode: USB direct charging

1. Primary function: Wireless GSM Business Phone
2. GSM compatibility: Quad band GSM 850/900/1800/1900Mhz
3. 2.4 inch color screen, large, easy to read, backlight LCD with status icons
4. Choice ring sound, power on/off
5. Support SMS, MMS and ID caller
6. Large ergonomically designed keyboard
7. Longe battery stand-by and talk time
8. Menu driven interface for easy operation and configuration
9. Last number redial
10. Adjustable ring and voice volume
11. AC power supply
12. Speaker phone
13. Environment temperature: -10 ~ 40 degree C
14. Atmospheric pressure: 86~106Kpa
15. Transimit power: 2W
16. Receiving sensitivity: -102dBm
17. Support dual GSM card, TF card

Package list
1. GSM Desk Phone x 1
2. Power Adapter x 1
3. User Manual x 1
4. Battery x 1
5. Handset x 1
6. Handle line x 1
7. Antenna

1. Primary Function: Wireless GSM Business Phone
2. GSM Compatibility: Quad band GSM 850/900/1800/1900Mhz
3. SIM Slots: 2
4. Screen Size: 2.4 inch
5. Power Source: Wall adapter or internal 3.7V 1000mAh li-ion battery
6. Battery Talking Time: 2-3 hours
7. Battery Standby Time: up to 48 hours
8. Dimensions: H:190 x W:170 x D:50 (mm)

Package Contents
1. GSM Desk fixed wireless phone x 1
2. EU Power Adapter x 1
3. User Manual x 1
4. Battery x 1
5. Antenna x 1
6. Handle line x 1

Key Technical index:
1. Networks support: GSM 850/900/1800/1900Mhz
2. Frequency range:
- GSM 850MHz(Transmits: 824-849MHz,Receives:869-894MHz)
- GSM 900MHz(Transmits: 890-915MHz,Receives:935-960MHz)
- GSM 1800MHz(Transmits: 1710-1785MHz,Receives:1805-1880MHz)
- GSM 1900MHz(Transmits: 1850-1910MHz,Receives:1930-1990MHz)
3. Voltage: DC 5V
4. Talk time: 2-6 hours
5. Charging time: 6 hours
6. Power consumption:Static<=25mA Emission: <=500mA
7. Peak poer consumption: 025W/05W
8. Relative Humidity: 10% ~ 95%
9. Receiving sensitivity: -106db
10. Antenna increment: All directions: 3.5db, Certain / selection: 12db

Features:
1. Large, easy to read,four lines, backlight LCD with status icons
2. Choice ring sounds, Power on/off
3. Caller ID
4. Lock national call
5. Lock card, lock phone, lock keyboard
6. Speed dial
7. Missed call,received call,dialed call and call duration
8. Long battery stand-by and talk time
9. Speaker Phone
10. Adjustable ring and voice volume
11. AC Power Supply
12. Menu driven interface for easy operation and configuration