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4 lines IP SIP Phone for VoIP Call Support POE,IP Phone Manufacture
  • 4 lines IP SIP Phone for VoIP Call Support POE,IP Phone Manufacture
  • 4 lines IP SIP Phone for VoIP Call Support POE,IP Phone Manufacture
  • 4 lines IP SIP Phone for VoIP Call Support POE,IP Phone Manufacture
4 lines IP SIP Phone for VoIP Call Support POE,IP Phone Manufacture4 lines IP SIP Phone for VoIP Call Support POE,IP Phone Manufacture4 lines IP SIP Phone for VoIP Call Support POE,IP Phone Manufacture

4 lines IP SIP Phone for VoIP Call Support POE,IP Phone Manufacture

    S4P&S4G Enterprise IP Phone

    A New Enterprise Phone with Intelligent DSS Key-mapping LCD Display

    The S4P/S4G IP Phone is a high-end enterprise desktop phone which comes with intelligent DSS Key-mapping to increase enterprise users’ productivity at a cost-effective price.

  • Description
  • Features
  • Application
  • Remarks


l   4 SIP Line

l   HD Voice­­­­­­­­

l   POE Enabled

l   2.8” color screen

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

l   Intelligent DSS Keys

l   Desktop / Wall-mount installation

l   Optional External Power Supply

l   Economical and Environmental friendly package

l   Industrial Standard Certifications: CE/FCC




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

l   Wideband ADC/DAC 16KHz Sampling

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

l   Wideband CODEC: G.722

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

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

l   Packet Loss Concealment (PLC)

l   Dynamic Adaptive Jitter Buffer up to 300ms

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


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

l   IP Configuration: Static / DHCP / PPPoE

l   Network Access Control: 802.1x

l   VPN: L2TP (Basic Unencrypted) / OpenVPN

l   VLAN

l   QoS



l   SIP2.0 over UDP/TCP/TLS


l   STUN

l   DHCP

l   PPPoE

l   802.1x

l   L2TP (Basic Unencrypted)

l   OpenVPN

l   SNTP



l   TR069






Deployment & Maintenance

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

l   Web Management Portal

l   Web-based Packet-dump

l   Configuration Export / Import

l   Phonebook Import/Export

l   Firmware Upgrade

l   syslog


Physical Specifications

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

l   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

l   HD Hands-free Speaker (0~7KHz) x1

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

l   HD Handset (RJ9) x1

l   Standard RJ9 Handset Wire x1

l   1.5M CAT5 Ethernet Cable x1

l   RJ9 Phone port x2: Handset x1, Headphone x1

l   RJ11 EXT port x1: Extension Module x1

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

                                 (S4G-802.3AF POE Class 2),

l                      PC x1 (Bridged to Network)

l   Main Chipset: Broadcom

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

(S4G) 5V / 1A

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

(S4G) Idle – ~1.7W, Peak – ~5.7W

l   Working Temperature: 0~40

l   Working Humidity: 10~65%

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

l   Color: Black

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

l   Outer CTN Dimensions: 530x330x280mm (10 PCS)

Call Features

l   Call out / answer / reject

l   Mute / Unmute (microphone)

l   Call Hold / Resume

l   Call Waiting

l   Intercom

l   Caller ID Display

l   Speed Dial

l   Anonymous Call (Hide Caller ID)

l   Call Forwarding (Always/Busy/No Answer)

l   Call Transfer(Attended/Unattended)

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

l   Redial/Auto-Redial

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

l   Auto-Answering (per line)

l   Voice Message (on server)

l   Local 3-way Conference

l   Hot Line

l   Hot-Desking

Phone Features

l   Phonebook (500 entries)       

l   Remote Phonebook (XML/LDAP)

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

l   Black/White List Call Filtering

l   Voice Message Waiting Indication (VMWI)

l   Programmable DSS/Soft keys

l   Network Time Synchronization

l   Action URL / Active URI


 Advanced Features


Virtual Private Network (VPN) is a technology to allow device to create a tunneling connection to a server and becomes part of the server’s network. The network transmission of the device may be routed through the VPN server.


For some users, especially enterprise users, a VPN connection might be required to be established before activate a line registration. The device supports two VPN modes, Layer 2 Transportation Protocol (L2TP) and OpenVPN.


The VPN connection must be configured and started (or stopped) from the device web portal.



NOTICE! The device only supports non-encrypted basic authentication and non-encrypted data tunneling. For users who need data encryption, please use OpenVPN instead.


To establish a L2TP connection, users should log in to the device web portal, open page [Network] -> [VPN]. In VPN Mode, check the “Enable VPN” option and select “L2TP”, then fill in the L2TP server address, Authentication Username, and Authentication Password in the L2TP section. Press “Apply” then the device will try to connect to the L2TP server.


When the VPN connection established, the VPN IP Address should be displayed in the VPN status. There may be some delay of the connection establishment. User may need to refresh the page to update the status.


Once the VPN is configured, the device will try to connect to the VPN automatically when the device boots up every time until user disable it. Sometimes, if the VPN connection does not established immediately, user may try to reboot the device and check if VPN connection established after reboot.


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