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Article Id: WHEBN0029921870
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Title: Phoner  
Author: World Heritage Encyclopedia
Language: English
Subject: Secure communication, VoIP software, Cryptographic software, Opus (audio format)
Collection: Cryptographic Software, Internet Privacy Software, Secure Communication, Voip Software
Publisher: World Heritage Encyclopedia


Phoner logo
Screenshot of Phoner
Phoner on Windows 7
Developer(s) Heiko Sommerfeldt
Initial release February 1998 (1998-02)[1]
Stable release 3.01 (9 September 2015 (2015-09-09)) [2]
Development status Active
Operating system Microsoft Windows
Size 4.37 MB
Available in English, German
Type VoIP
License Freeware
PhonerLite logo
Screenshot of PhonerLite
PhonerLite on Windows 7
Initial release 1 June 2005 (2005-06-01)
Stable release 2.28 (9 September 2015 (2015-09-09)) [3]
Development status Active
Size 4.64 MB
Available in Arabic, Czech, English, French, German, Polish, Portuguese, Russian, Spanish, Turkish


  • Description 1
  • Supported audio formats 2
  • See also 3
  • References 4
  • External links 5


Phoner and PhonerLite are softphone applications for Windows operating systems available as freeware. Phoner is a multiprotocol telephony application supporting telephony via CAPI, TAPI and VoIP, while PhonerLite provides a specialized and optimized user interface for VoIP only. Beside the different user interface focus both programs share the same code base.

Both programs use the Session Initiation Protocol for VoIP call signalisation. Calls are supported via server-based infrastructure or direct IP to IP. Media streams are transmitted via the Real-time Transport Protocol which may be encrypted with the Secure Real-time Transport Protocol (SRTP) and the ZRTP security protocols. Phoner provides as well an interface for configuring and using all supplementary ISDN services provided via CAPI and thus needs an ISDN terminal adapter hardware installed in the computer.

Phoner and PhonerLite support IPv4 and IPv6 connections by using UDP, TCP and TLS.

Supported audio formats

  • G.711 A-law: 64 kbit/s payload, 8 kHz sampling rate
  • G.711 μ-law: 64 kbit/s payload, 8 kHz sampling rate
  • G.722: 64 kbit/s payload, 16 kHz sampling rate
  • G.726: 16, 24, 32 or 40 kbit/s payload, 8 kHz sampling rate
  • GSM: 13 kbit/s payload, 8 kHz sampling rate
  • iLBC: 13.3 or 15.2 kbit/s payload, 8 kHz sampling rate
  • Speex narrow band: 15 kbit/s payload, 8 kHz sampling rate
  • Speex wide band: 30 kbit/s payload, 16 kHz sampling rate
  • Opus: 10-50 kbit/s, up to 48 kHz sampling rate

See also


  1. ^ Phoner history
  2. ^ Release history on Phoner download page
  3. ^ Changelog on PhonerLite download page

External links

  • Phoner Main Website
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