Huawei VoIP PoE USB Phone Expansion Module 7903X

Product details
weight:about 0.9 kgSix-Party Local Meetings:supported
Network protocol:TCP/IP,SIP,SDP,UDP,RTP,RTCP,DHCP,DNS,PPPoE,HTTP,HTTPS,SNTP,XCAPPackaging Details:huawei original bag
brand:Huaweimodel:eSpace 7903X
Headphone port:RJ-9/USBexhibit:5-inch color screen, 800 x 480 pixels, 16 million colors
aspect:217mm x 208mm x 124mmplace of origin; place of origin:Guangdong, China
Supply capacity:200 sets of Huawei VoIP Phone PoE USB Expansion Module 7903X per weektype:online telephone
payment terms:L/C, T/T, Western Union, Paypalenergy consumption:About 6.49W
port:Shanghainetwork port:2 GE interfaces, 10Mbit/s, 100Mbit/s, 1000Mbit/s adaptive, support PoE
Embedded Bluetooth:supportedName:Huawei VoIP Phone PoE USB Expansion Module 7903X

Huawei VoIP Phone PoE USB Expansion Module 7903X



Product Description

Huawei IP Phone 7900 series is a new generation of IP phones with excellent performance. The innovative design is intuitive and easy to use, enabling users to benefit from efficient communication.

Slim design

Compared to clunky traditional IP phones, the IP Phone 7900 Series features a sleek, advanced design that provides a clean and stylish experience.

Crystal-clear full-range high-definition (HD) audio performance

Based on profound insights into acoustic science, Huawei has pioneered revolutionary audio technology to deliver superior sound quality.

ergonomic design

Based on an in-depth analysis of user habits, Huawei has created an elegant and ergonomic design for the handset and adjustable base, bringing users a comfortable feel and the best view.

Gigabit Ethernet (GE) port and color screen

Color screen IP phones 7900 series are equipped with GE interfaces and support Opus full-band voice codec. These features support high-bandwidth services, making the IP phone 7900 series the best choice for cost-effective IP phones for enterprises.

Consistent experience across terminals

IP Phone 7900 series phones use the same user interface (UI) style as other Huawei Unified Communications (UC) endpoints to provide a consistent and easy user experience



VoIP 7910

eSpace 7910 has a 2.83-inch color screen and supports three SIP accounts. Its graphical user interface (GUI) provides a rich operating experience. It also provides a user-friendly man-machine interface (MMI) and feature-rich programmable buttons to provide high-quality call services.

Color 2.83-inch screen, 320 x 240 pixels, 260,000 colors
Two line keys, red and green dual-color LED, support up to 12 concurrent calls
Ten programmable buttons with red and green bi-color LEDs
Four fixed-function buttons with red LEDs, including speaker, headset, mute, and call log
Seven fixed-function buttons without LEDs, including Home, Messages, Volume, Contacts, Hold, Conference, and Transfer
Four easy-to-use softkeys activate on-screen options
Five navigation buttons including up, down, left, right and ok
Two GE ports supporting Power over Ethernet (PoE)
One RJ-9 headphone port

Voice and Security

  • Opus full-band speech codec with sampling frequency up to 48 kHz
  • Hi-Fi speakers, earpieces and headphones
  • Comprehensive signaling and media stream encryption



  • 10 system ringtones
  • Flexible Ringtone Selection
  • ringtone import


  • 12 System Wallpapers
  • Large wallpaper selection
  • wallpaper import


local configuration

LCD screen GUI for local call management

Built-in web server

Web configuration page for easy phone management

Huawei eSight

eSight is a unified network management system (NMS) that provides a variety of IP phone management functions, including batch restart of phones, centralized configuration of phones, unified deployment, unified upgrade, log export, centralized wallpaper and ringtone update


consistent user experience
Human-machine interaction on the HMI, with the help of softkeys
Versatile and easy to operate
local six-party meeting
Easily host and manage local multiparty conferences with up to six people
Powerful conference status display for easy identification of participants
Convenient Conference Control
contact person
Up to 1,000 contacts
contact group
Contact information (including avatar) settings
Lightweight Directory Access Protocol (LDAP) directory
IP phone LCD screen Efficient keyword query enterprise contact information
Multi-keyword fuzzy search
Click to dial to search for contacts
Synchronize with corporate directory via LDAP
call records
Up to 100 records for each dialed, received, and missed call
Missed call LED indication
Detailed call information such as profile picture and call duration
Dial directly from the call log
Easily add numbers from call log to contact list
XML browser support
Allows use of third-party XML applications

Widely used in UC/CC/IMS solutions


IP Phone 7900 series IP phones can be used in Huawei UC solutions, providing rich functions such as corporate contacts, linkage, and one-key switching. They also support multiple registrations and server redundancy to help ensure high reliability.

In Huawei's Contact Center (CC) solution, IP phones 7900 series work with agent desktops to provide voice call services. The IP Phone 7900 series can also apply Huawei's IP Multimedia Subsystem (IMS) solution to provide basic IP Telephony (IPT) services.

extension module

The 7903X expansion module (shown installed on the IP Phone 7950) is used with the IP Phone 7950 for functional expansion.

eSpace 7903X

The expansion module 7903X is a multifunctional IP phone expansion module. A single expansion module 7903X expands the IP Phone 7950 to provide an additional 40 programmable buttons and optimize viewing through a 5-inch color LCD screen.
True Color 5" screen, 480 x 800 pixels (high resolution), 16 million colors
20 programmable buttons with red and green bi-color LEDs to indicate different line states and provide multiple functions including speed dial, busy lamp field (BLF), contact group, XML application, phone lock, phone sleep, call Transfer, Pickup, Group Pickup, Call Park, and Do Not Disturb (DND)
Two page-turn buttons with single-color LEDs provide access to an additional 20 programmable buttons (total of 40 buttons)
Icon display for multiple functions, including phone lock, phone sleep, XML application and contact group
Contact's profile picture display
Product Details


category parameter 7910 7950
protocol Network protocol
  • TCP/IP, SIP, and SDP
  • UDP, RTP, and RTCP
  • DHCP, DNS, and PPPoE
mobile phone function Multi-line 6 12
multiple accounts 3 6
audio codec
  • G.711a, G.711μ
  • G.722, G.722.1, G.722.2
  • G.729AB, iLBC, Opus, AAC-LD
audio function • Dual Tone Multi-Frequency (DTMF): In-band/RFC2833

• Anti-clipping (ACLP)

• Acoustic Echo Cancellation (AEC)

• Automatic Gain Control (AGC)

• Adaptive Jitter Buffer (AJB)

• Automatic Noise Reduction (ANR)

• Comfort Noise Generation (CNG)

• Hearing Aid Compatibility (HAC)

• Packet Loss Concealment (PLC)

• Voice Activity Detection (VAD)

• Sidetone cancellation

• Voice Quality Monitor (VQM)

• Hum cancellation
call records • Up to 100 records for each dialed, received and missed call

• Missed call notifications
contact person • Up to 1,000 contacts

• Contact query, import, export


  • Chinese (simplified and traditional)
  • English, Portuguese, Spanish,
  • French, Arabic, Turkish, Russian
  • German, Polish and Hungarian


  • Chinese (simplified and traditional)
  • English, French, Portuguese
  • Spanish, Arabic, Polish, Hungarian and Russian
ring • 10 system ringtones

• Ringtone import
wallpaper • 12 system wallpapers

• Wallpaper import function
local meeting • 6-way audio conferencing

• Participant status display

• Add, mute, remove participants, etc.
service application Basic voice service
  • Call Waiting, Call Hold, Call Forwarding, Call Forwarding, Call Deflection
  • Do not disturb
  • Advanced Secretarial Services
  • call park
  • pick up
  • group pickup
  • Featured Ring
  • automatic call back
  • Voicemail
  • Abbreviated dialing
  • BLF
  • paging broadcast
  • hunt group
  • Password-based call barring
  • Emergency call
company directory Contact query, direct dial, add contacts to the local address book
Name and department display Incoming and outgoing calls display the other party's name, department, phone number
Profile picture display Incoming and outgoing calls display the other party's avatar
chain • Call control using desktop client

• Status synchronization between Desktop Client and IP Phone 7910/7950
Call Recording • Record audio calls

• Recorded information saved on the server

• Recording control (start or stop) on IP Phone 7910/7950
instant meeting Instant audio conferencing with the conference button
group meeting Audio conference with participants in a contact group


parameter 7910 7950
Screen 2.83 inches, 320×240 pixels, 260,000 colors, color screen 5 inches, 800 x 480 pixels, 16 million colors, color screen
led Line, Message Waiting Indicator (MWI), Mute, Speaker, Call Log, Headset, and Programmable Button LEDs
angle adjustment 2 adjustable angles
button • 2 line buttons

• 5 navigation buttons (up, down, left, right, OK)

• 10 programmable buttons

• 4 softkeys

• 4 fixed function buttons with LEDs (speaker, headset, mute and call log)

• 7 non-LED fixed function buttons (Home, Messages, Volume, Contacts, Hold, Conference and Transfer
• 6 line buttons

• 5 navigation buttons (up, down, left, right, OK)

• 4 softkeys

• 4 fixed function buttons with LEDs (speaker, headset, mute and call log)

• 5 non-LED fixed function buttons (Home, Messages, Volume, Contacts and Forward
ethernet port 2 GE interfaces: 10/100/1000Mbit/s adaptive, support VLAN configuration
mobile port RJ-9
headphone port RJ-9 RJ-9/USB
Power supply Level 1 level 2
Power Adapter Input: 100V to 240V AC

Output: 5V DC, 2A
aspect 9" x 8.1" x 4" (231mm x 208mm x 103mm) 8.5" x 8.1" x 4.8" (217mm x 208mm x 124mm)
energy consumption About 3.84W about 6.49W
weight Approx. 1.8 lbs (0.85 kg) Approx. 1.9 lbs (0.9 kg)
Packaging and Shipping

Trade information

Trade terms: FOB, CIF, CFR, etc.
Price terms: L/C, D/P, T/T, Western Union, PayPal
Payment terms: T/T in advance
MOQ: 1 piece
FOB price: US $1 - 1,000 / piece
Port: Shanghai
Delivery time: within 5 working days after payment received.
Shipment: by express, by air, by sea
Supply Ability: 200pcs/piece per week
Sample availability: yes (not free)

 Packaging information: Carton packaging includes Huawei original packaging