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Quick Overview

The Sangoma s305 is a fully-featured phone with two Session Initiation Protocol (SIP) accounts at a competitive entry-level price point. 

Sangoma S305 Information:

The Sangoma S305 phone is a entry-level device with next-level features.  This two SIP account telephone sets the standard for performance vs. price and we designed specfically with FreePBX and PBXact in mind. Perfect for sales people, managers and common areas, the Sangoma 305 can be deployed just about anywhere in a small business.

The Sangoma s305 is a fully-featured phone 

Sangoma S305 Overview:

The s305 features industry standard Power-over-Ethernet (PoE), so no power cable or outlets required. It has full duplex speakerphone, dual Ethernet ports, five-way conference calling, high denition voice quality, and built in Virtual Private Network (VPN) capability.

Sangoma S305 Features:

  • Built for FreePBX and PBXact 

  • 128 x 40-pixel display

  • 2 VoIP account

  • 5-Way Conferencing

  • Dual-port 10/100 Ethernet

  • Integrated PoE

Sangoma S305 Features:

  • HD voice: HD handset, HD speaker

  • Codecs: iLBC, G.722, G.711(A/μ), GSM_FR, G.723, G.729AB, G.726-32

  • DTMF: In-band, RFC 2833, SIP INFO

  • Full-duplex hands-free speakerphone with AEC


  • Busy Lamp Field (BLF)

  • Anonymous call, anonymous call rejection

  • Message Waiting Indicator (MWI)

  • Voice mail

  • Intercom, paging

  • Call park, call pickup

  • Music on hold

  • 4 line keys with LED

  • 8 line keys can be programmed up to 28 various features (4-page view)

  • 8 features keys: voice mail, headset, speaker, hold, mute, transfer, call list, conference

  • 4 context-sensitive “soft” keys

  • 6 navigation keys

  • Volume control keys

  • Illuminated speaker, headset, and mute keys

  • SIP v1 (RFC2543), v2 (RFC3261)

  • SIP server/proxy redundancy

  • NAT Traversal: STUN mode

  • DHCP/static/PPPoE

  • HTTP/HTTPS web server

  • Time and date synchronization by SNTP


  • QoS: 802.1p/Q tagging (VLAN), Layer 3 ToS DSCP

  • IEEE802.1X

  • TLS(Transport Layer Security)

  • SRTP

  • Open VPN

  • HTTPS certificate manager

  • AES encryption for configuration file

  • Digest authentication using MD5/MD5-sess

Build a Bundle:

The Sangoma S305 phone is an ideal phone for building a fully featured telephone system. Simply add additional Sangoma phones, Vega Gateways, telephony cards, and a FreePBX or PBXact UC server. Let our expert team assist you in building the perfect PBX for your business.

Sangoma Part Number: PHON-S305

Still not sure which FreePBX VoIP phone is right for you? Click Here For Live Assistance!  You can also call us toll free at 877.434-8647- Our online team of experts will be happy to create a custom quote for you.


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