S-Series IP Phones

S305 IP Phones

Sangoma s505 IP PhoneThe S305 IP phone is designed for businesses with PBXact phone systems needing a fully-featured entry level IP phone at a cost-effective price point. It supports two (2) Session Initiation Protocol (SIP) accounts, full duplex speakerphone and has a 192 x 64 pixel backlight graphical LCD display. Zero-Touch auto-provisioning makes it so easy to setup, all you need to do is plug the phone into an internet connection, in or out of the corporate office location.

Built-in PhoneApps enables users to control complex features directly from the phone’s display and programmable buttons. This allows users to have full control of their phone system right from their fingertips. Other features such as built-in VPN and hot desking makes the S305 great value.

IP Phone Applications


Lobby Phone

Great for any business which requires an IP phone for basic usage.



Great for factory workers needing a simple phone with basic features such as paging and speakerphone.



Office workers can benefit from the PhoneApps advanced features and increase their productivity.



Institutions can leverage features such as speakerphone and paging for bell systems. Teachers can use the advanced PhoneApp features to help them be productive as well as change class rooms with Hot Desking.

IP Phone Features

Zero Touch Provisioning
Zero-Touch Auto-Provisioning with
PBXact Phone Systems

Plug in the phone into any internet connection, local or remote and it will find the phone system and autoprovisioning, using Sangoma’s redirection service.


PhoneApps are a bundle of advanced applications, which install directly onto your IP phone, converting all your complicated features into easy-to-use visual applications, which you control, directly from the phone’s display!

Included EndPoint Manager
EndPoint Manager lets users control global settings, program their phone keys, map extensions, upload images, download new firmware, and much more.
Built-in VPN

Connect remote phones to the corporate office securely using built-in VPN. Perfect for remote workers to be able to access all their tools from the office without compromising security.

Hot desking
Hot Desking

For users without a permanent work desk, log in to any phone with your extension and password, and all your settings follow you instantly. Perfect for call-center agents, and other roaming workers. It’s as if you never left your desk at all!

Power over Ethernet
PoE Support

All Sangoma IP phones can be powered by the same ethernet cable plugged into it, without requiring the power adaptor. This allows you to place the phone wherever you want without searching for a power socket.


All S-Series phones support global language support.

IP Phone Specifications

General Features

  • 2x SIP Accounts
  • Call hold, mute, DND
  • Call forward, call waiting, call transfer
  • Busy Lamp Field (BLF)
  • Call park / pickup
  • Music on hold
  • Voicemail
  • Anonymous call / rejection
  • Message waiting indicator
  • Intercom paging

Advanced Features (PhoneApps)

  • Time conditions
  • Queues / Queue Agents
  • Presence
  • Queue agents
  • Hot-desking
  • Call flow
  • Contacts
  • Call Forwarding
  • Conference Rooms
  • Do-Not-Disturb
  • Follow Me
  • Visual Voicemail

Display & Indicator

  • 192 x 64 pixel graphical LCD with backlight
  • LED for call and message waiting indication
  • Caller ID with name, number and photo
  • Dual-color illuminated LEDs for line status

Physical Dimensions

  • Shipping dimensions: 205mm (W) x 194mm (D) x 105mm (H)
  • Shipping weight: 0.91kgs (2 lbs)
  • Wall mountable
  • Stand with 3 adjustable angles


  • Dual-port 10/100 Mbps Ethernet
  • 1x RJ9 (4P4C) handset port
  • Power over Ethernet (IEEE 802.3af) (PoE), class 2

Optional Accessories


  • PHON-S305 - S305 IP phone
  • PHON-S305-PLT - S305 IP phone (1 x Pallet)
  • PHON-S305-10P - S305 IP phone (10 Pack, 1 Carton)
  • PHON-ACCS-PSUNA-SNG - S-Series phone power adaptor (NA)
  • PHON-ACCS-PSUEU-SNG - S-Series phone power adaptor (EU)
  • PHON-ACCS-PSUAU-SNG - S-Series phone power adaptor (AU)
  • PHON-ACCS-PSUAU-SNG - S-Series phone power adaptor (AU)
  • PHON-ACCS-PSUUK-SNG - S-Series phone power adaptor (UK)
  • PHON-ACCS-S30-BASE - Base stand replacement
  • PHON-ACCS-S30-HAND - Handset replacement
  • PHON-ACCS-S30-COIL - Handset coil cord replacement

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