CSipSimple

CSipSimple

CSipSimple is an open source SIP client for Android that allows you to make VoIP calls over Wi-Fi or mobile data. It supports common SIP features like call transfer, call forwarding, call waiting, 3-way conferencing, etc.
CSipSimple image
voip sip android calls wifi mobile-data

CSipSimple: Open Source SIP Client for Android

CSipSimple is an open source SIP client for Android that allows you to make VoIP calls over Wi-Fi or mobile data. It supports common SIP features like call transfer, call forwarding, call waiting, 3-way conferencing, etc.

What is CSipSimple?

CSipSimple is an open-source SIP client for Android devices that enables users to make and receive VoIP calls over Wi-Fi or mobile data. Some key features include:

  • Supports popular SIP services like Asterisk, OpenSIPS, FreeSWITCH, etc.
  • Provides HD audio and video calling capabilities
  • Includes advanced call features like call transfer, 3-way conferencing, call forwarding, call waiting, voicemail access, and more
  • Offers excellent NAT traversal capabilities to ensure reliability of calls behind firewalls/NAT routers
  • Supports a range of audio codecs such as G.711 (PCMA/PCMU), G.722, Speex, G.726, iLBC, Opus, etc.
  • Offers configuration of multiple SIP accounts and profiles
  • Provides a user-friendly calling interface with support for an address book and call history

As an open source Android SIP client, CSipSimple offers a high level of functionality and customization options for free. It is an excellent choice for any Android user looking to make VoIP calls via a Wi-Fi or mobile data connection.

CSipSimple Features

Features

  1. VoIP calling over Wi-Fi or mobile data
  2. Support for common SIP features like call transfer, call forwarding, call waiting, 3-way conferencing
  3. Video calling support
  4. Call recording
  5. Encryption using SRTP and ZRTP
  6. NAT traversal using STUN, TURN, ICE
  7. Voicemail support using SIP MESSAGE
  8. Caller ID support
  9. Contacts integration
  10. Call history
  11. Auto answer

Pricing

  • Open Source

Pros

Free and open source

Full SIP protocol support

Good call quality

Lots of features

Active development community

Cons

Setup can be complex for less technical users

Missing some features of proprietary apps like visual voicemail

Some stability issues reported

No native iOS app


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