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Phoner logo
Screenshot of Phoner
Phoner on Windows 7
Developer(s) Heiko Sommerfeldt
Initial release February 1998 (1998-02)[1]
Stable release 3.08 (29 February 2016; 4 months ago (2016-02-29)) [±][2]
Development status Active
Operating system Microsoft Windows
Size 4.37 MB
Available in English, German
Type VoIP
License Freeware
Logo of PhonerLite
Screenshot of PhonerLite application
PhonerLite on Windows 10
Initial release 1 June 2005 (2005-06-01)
Stable release 2.38 (8 June 2016; 38 days ago (2016-06-08)) [±][3]
Development status Active
Size 5.61 MB
Available in Arabic, Czech, English, French, German, Polish, Portuguese, Russian, Spanish, Turkish

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.

Both programs support IPv4 and IPv6 connections by using UDP, TCP and TLS.

Supported audio formats[edit]

  • 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[edit]


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

External links[edit]