4G+VOIP Enterprise Business IP phone


P03-4G builds with Spreadrum 4G LTE 5 mode(embedded TD- LTE, LTE FDD, WCDMA, and GSM/GPRS/EDGE), Support VOLTE HD voice, features a 2 .4-inch 320×240 pixel screen, supports 2.4GWIFI connection, suitable for mobile office occasions.

Additional information

Product Details:

P03-4G supports HD audio calls based on the SIP protocol, and has excellent hardware ECHO suppression and noise reduction effects; supports the standard SIP2 .0 protocol, and is compatible with mainstream soft switches, IMS, and IPPBX systems on the market, as well as various SIP protocol mainstream audio terminal.

P03-4G fixed line is a multi-functional communication terminal, which can be used for voice communication on the IP network and is a VOIP terminal product with high practicality and manageability. It can be used for internal telecom lines and networks 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 be used as the center of each proprietary network and is the most traditional communication tool. 

Product highlights

Good user experience

The Simple and elegant outlook, features a 2 .4-inch color screen, with a user-friendly UI, bringing a comfortable and efficient experience.

Data transmission

The phone has built-in 2.4 G WIFI and supports 4G SIM card networking, and a variety of network selection methods make the network connection more flexible and convenient to meet customers’ various online needs.


Adopting industry-leading intelligent noise cancellation technology, it can provide high-definition, perfect sound quality, and provide users with a first-class communication experience.

Secure Deployment Configuration Protocol

Users do not need to manually configure and upgrade the phone, just need to power on and connect to the Internet, and the phone can be automatically deployed, saving a lot of time and cost.

The Main function:

Technical Parameters


· HD Voice Microphone/Speaker (Handset/Hands-free)

· Excellent Echo Cancellation Technology (ECT)

· Receiver with intelligent noise reduction ANC Technology


· DTMF: Out-of-band(RFC2833)、SIP INFO

· Full duplex hands-free · VAD, CNG, AEC, AGC, ANS

Phone Features

· 2 SIP accounts · Call hold/mute/DND/redial/One-touch speed dial

· Call forward/ call transfer/Blind rotation · Redial/Callback/Autoanswer

· Call log: all/out/received/missed/call forward

· 3-way conferences

· Direct IP call without SIP proxy

· Ringer selection · Set date time manually or automatically

· Basic function: received/hand up/call mute


· Phone book (1000 records)

· Phonebook search/import/export

· Edit/delete contracts


· Voice message

· Visual UI interface design

· Server-based recording function


· 1*USB 2.0 port

· 1* RJ9(4P4C)Handset jack

Phone interface

· Incoming call /missed message led indicator

· Intuitive user interface

· support Chinese/English or other languages

· Incoming call show name and number

Feature keys

· 28 touch keys

· 4 features keys: dial/hand up /redial/Hands-free

· 2 sip account key

· Menu/Number key

· Speed dial key


· Online APP update, WEB terminal offline update

· Support PnP auto-provisioning

· TR069 remote provisioning

· Reset to factory, reboot

Network and Security

· Call server redundancy supported

· NAT Traversal By STUN

· Proxy mode and peer-to-peer SIP link mode

· Support HTTP web server

· Time and date synchronization using SNTP

· Support UDP/TCP/TLS

· QoS: DSCP · Support SRTP

Other physical

· Color: Black

· Power adapter: 5V/1A DC input

· Battery capacity:1000ma/H

· Relative humidity: 10%~90% No Condensing Operation temperature: -10~50°C

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