Twinkle (software)
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| Developer(s) | Michel de Boer, Luboš Doležel |
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| Initial release | 27 April 2005 |
| Stable release | 1.10.3[1] 
/ 19 February 2022 |
| Repository | |
| Written in | C++ |
| Operating system | Linux |
| Platform | Qt |
| Type | VoIP |
| License | GPL-2.0-or-later |
| Website | twinkle |
Twinkle is a free and open-source application for voice communications over Voice over IP (VoIP) protocol.
Architecture[edit]
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[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.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[edit]
- Comparison of VoIP software
- List of SIP software
- List of free and open-source software packages
- Opportunistic encryption
References[edit]
- ^ "Twinkle 1.10.3 Latest". 19 February 2022. Retrieved 5 March 2023.
- ^ "Twinkle - soft-phone for making telephone calls". LinuxLinks.
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