Twinkle
Developer(s)Michel de Boer, Luboš Doležel
Initial release27 April 2005
Stable release
1.10.3[1] Edit this on Wikidata / 19 February 2022
Repository
Written inC++
Operating systemLinux
PlatformQt
TypeVoIP
LicenseGPL-2.0-or-later
Websitetwinkle.dolezel.info Edit this on Wikidata

Twinkle is a free and open-source application for voice communications over Voice over IP (VoIP) protocol.

Architecture

It is designed for Linux operating systems and uses the Qt toolkit for its graphical user interface. For call signaling it employs the Session Initiation Protocol (SIP).[2] It also features direct IP-to-IP calls. Media streams are transmitted via the Real-time Transport Protocol (RTP) which may be encrypted with the Secure Real-time Transport Protocol (SRTP) and the ZRTP security protocols.

Since version 1.3.2 (September 2008), Twinkle supports message exchange and a buddy-list feature for presence notification, showing the online-status of predefined communications partners (provider-support needed).

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.726: 16, 24, 32 or 40 kbit/s payload, 8 kHz sampling rate
  • GSM: 13 kbit/s payload, 8 kHz sampling rate
  • G.729: 8 kbit/s payload, 8 kHz sampling rate
  • iLBC: 13.3 or 15.2 kbit/s payload, 8 kHz sampling rate
  • Speex narrow band: 15.2 kbit/s payload, 8 kHz sampling rate
  • Speex wide band: 28 kbit/s payload, 16 kHz sampling rate
  • Speex ultra wide band: 36 kbit/s payload, 32 kHz sampling rate

See also

References

  1. "Twinkle 1.10.3 Latest". 19 February 2022. Retrieved 5 March 2023.
  2. "Twinkle - soft-phone for making telephone calls". LinuxLinks.


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