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OEM 4 SIP IP Phone With Factory Price S4P International Desktop POE IP Phone For Free Call


OEM 4 SIP IP Phone With Factory Price S4P International Desktop POE IP Phone For Free Call

Brand Name : SKYLINE

Model Number : S4P

Certification : 3C

Place of Origin : Shenzhen, Guangdong

MOQ : 500

Price : 38

Payment Terms : T/T

Supply Ability : 1000/week

Delivery Time : 45

Packaging Details : Size: 325mm (W) x 140mm (L) x 60mm (H) carton with bubble

Type : VoIP Phone

Warranty : 12 Months

Condition : brand new

Product name : IP Phone

Programmable line keys : Lunix

Voip protocols : SIP

Device type : 4 SIP IP Phone

Package weight : 11KG

Number of line keys : optional

Product type : OEM

Manufacturer : SKYLINE

Power supply : OEM/power adapter

Contact Now

OEM 4 SIP IP Phone With Factory Price S4P International Desktop POE IP Phone For Free Call

Contact me! skype: skyline_arise / WhatsApp: 0086 17688733622

We have advanced X seriese available!

Product Description

The new S4 color screen IP Phone is a high-end enterprise desktop phone which comes with intelligent LCD the DSS Key-mapping to increase enterprise users’ productivity at a cost-effective price.

The DSS key-mapping is designed with intelligence to support dynamic usage to substitute expansion modules. There are 7 DSS keys corresponded to the color LCD display to provide dynamic Line/DSS/BLF functions up to four pages at virtualized total 28 DSS keys. User may configure/customize each DSS key in each page. Every DSS key has a LED indication in green, red, and yellow colors to reflect the key state. A page shortcut button is also designed to allow user to quickly switch between pages. S4 is the most economic choice for SMB office and enterprise supervisors.

S4 inherits all features from enterprise phones, such as HD voice in handset, headset, and full-duplex speakerphone modes, PoE, Fast/Gigabit Ethernet, QoS, secure transmission, auto-provisioning, and more.

S4 is a great office productivity appliance for enterprise users. The old DSS key label is inconvenient and not environmental friendly. S4’s intelligent LCD the DSS Key-mapping provides users the flexibility to change DSS key definition and display through easy configuration. Meanwhile, with its intelligent design of the DSS key, it can be multiplied as expansion modules to save space and cost. S4 will provide the best user experience to advance enterprise users.”

In order to help some users who are interested to read every detail of the product, this user manual is provided as a user’s reference guide. Still, the document might not be up to date with the newly release software, so please kindly download updated the latest user manual from website, or contact with support if you have any question using S4.

Series Specifications Comparison

ModelScreenHandsetEthernetPoEPower Adapter

Series OEM Options

ü Logo( Cover plate Logo, LCD logo displayed )

ü On Animation

ü Web UI

ü Packaging Design


-4 SIP Line

-HD Voice

-POE Enabled

-2.8” color screen

-Handset(HS) / Hands-free(HF) / Headphone(HP) mode (EHS support for Plantronics headsets)

-Intelligent DSS Keys

-Desktop / Wall-mount installation

-Optional External Power Supply

-Economical and Environmental friendly package

-Industrial Standard Certifications: CE/FCC

Call Features

-Call out / answer / reject

-Mute / Unmute (microphone)

-Call Hold / Resume

-Call Waiting


-Caller ID Display

-Speed Dial

-Anonymous Call (Hide Caller ID)

-Call Forwarding (Always/Busy/No Answer)

-Call Transfer(Attended/Unattended)

-Call Parking / Pick-up (depending on server)


-Do-Not-Disturb (per line / per phone)

-Auto-Answering (per line)

-Voice Message (on server)

-Local 3-way Conference

-Hot Line


Phone Features

-Phonebook (500 entries)

-Remote Phonebook (XML/LDAP)

-Call log (100 entries, in/out/missed)

-Black/White List Call Filtering

-Voice Message Waiting Indication (VMWI)

-Programmable DSS/Soft keys

-Network Time Synchronization

-Action URL / Active URI


-HD Voice Microphone/Speaker (Handset/Hands-free, 0~7KHz Frequency Response)

-Wideband ADC/DAC 16KHz Sampling

-Narrowband CODEC: G.711a/u, G.723.1, G.726-32K, G.729AB

-Wideband CODEC: G.722

-Full-duplex Acoustic Echo Canceller (AEC) – Hands-free Mode, 96ms tail-length

-Voice Activity Detection (VAD) / Comfort Noise Generation (CNG) / Background Noise Estimation (BNE) / Noise Reduction (NR)

-Packet Loss Concealment (PLC)

-Dynamic Adaptive Jitter Buffer up to 300ms

-DTMF: In-band, Out-of-Band – DTMF-Relay(RFC2833) / SIP INFO


-10/100Mbps(S4P), 10/100/1000Mbps(S4G) Ethernet, dual bridged port for PC bypass

-IP Configuration: Static / DHCP / PPPoE

-Network Access Control: 802.1x

-VPN: L2TP (Basic Unencrypted) / OpenVPN




-SIP2.0 over UDP/TCP/TLS






-L2TP (Basic Unencrypted)









-Deployment & Maintenance

-Auto-Provisioning via FTP/TFTP/HTTP/HTTPS/DHCP OPT66/SIP PNP/TR069

-Web Management Portal

-Web-based Packet-dump

-Configuration Export / Import

-Phonebook Import/Export

-Firmware Upgrade


Physical Specifications

-LCD: 2.8 inch (320x240) color-screen

-Keypad: 39 keys, including

8 DSS key with tri-color LED

4 Soft-keys

7 Function keys

4 Navigation keys + 1 OK key

12 Standard Phone Digits keys

2 Volume Control keys, Up/Down

1 Hands-free key

-HD Hands-free Speaker (0~7KHz) x1

-HD Hands-free Microphone (0~7KHz) x1

-HD Handset (RJ9) x1

-Standard RJ9 Handset Wire x1

-1.5M CAT5 Ethernet Cable x1

-RJ9 Phone port x2: Handset x1, Headphone x1

-RJ11 EXT port x1: Extension Module x1

-RJ45 Ethernet Port x2: Network x1 (S4P-802.3AF POE Class 1),

(S4G-802.3AF POE Class 2),

PC x1 (Bridged to Network)

-Main Chipset: Broadcom

-DC Power Input: (S4 and S4P) 5V / 0.6A

-(S4G) 5V / 1A

-Power Consumption: (S4P) Idle –~1.3W, Peak – ~4.3W

-(S4G) Idle – ~1.7W, Peak – ~5.7W

-Working Temperature: 0~40℃

-Working Humidity: 10~65%

-Dual-Functional Back Rack x1: Desktop Stand / Wall-mount

-Color: Black

-Gift Box Dimensions: 260x255x62mm (L x W x H)

-Outer CTN Dimensions: 530x330x280mm (10 PCS)


Cheaper Color Screen HD Voice Voip Phone 2/4/6 Sip Ip Phone

Packaging & Shipping


Packing box size: 55cm*34cm*30cm
Weight: 10.7KG

10 pieces one carton


Packing box size: 32cm*55cm*34.5cm

Weight: 12.7KG

10 pieces one carton


Packing box size: 56cm*41cm*33cm

Weight: 14.9KG

10 pieces one carton

OEM Leading time: 45 working days for 1000 pieces

Shipment in 3 days after payment

Cheaper Color Screen HD Voice Voip Phone 2/4/6 Sip Ip Phone

Our Services

1. Support OEM, including starting LOGO, system informaiton LOGO, operating interface LOGO, appearance LOGO, even packing box!

2. One year warranty with life-time technical support.

3. We have softswitch and server for renting to connect the IP Phones freely!

4. We provide strong technical support about IP Phone service (6 days*12 hours)

5. We can help you rent a VoIP softswitch server in USA

6.We can provide you with softswitch test

7.We can offer factory price for you

8. We can help to connect with other call system

Company Information


SKYLINE INTERNATIONAL COMMUNICATION Co., Ltd. was founded in 2002.Owns CHINA SKYLINE TELECOM CO., LTD & SHENZHEN TYH TECHNOLOGY CO., LTD.We have over 120 employees, 15 departments and more than 10 production lines. More than 200 companies have established business with us, and they are from over 60 different countries. Our company is a manufacturer of VoIP Gateways, GSM VoIP gateways, with well-equipped testing equipment and strong technical force. With a wide range, good quality, reasonable prices and stylish designs, our products are extensively used in communication industry and other industries.

OEM 4 SIP IP Phone With Factory Price S4P International Desktop POE IP Phone For Free Call


Any questions, pls contact me anytime!

Skype: skyline_arise Wechat/WhatsApp: 0086 17688733622

OEM 4 SIP IP Phone With Factory Price S4P International Desktop POE IP Phone For Free Call

China OEM 4 SIP IP Phone With Factory Price S4P International Desktop POE IP Phone For Free Call factory

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