ZoiPer is a softphone application that allows users to make voip calls over 3G or WiFi using IAX and SIP systems. The application has recently undergone major changes, including a new graphical user interface, the ability to choose from multiple and custom color themes, improved bluetooth support, a reworked network change feature, and a new notification system.
It is important to note that in-app purchases made from Zoiper Free will not sync with Zoiper Premium and vice-versa. Zoiper Premium includes all advanced features found in Zoiper Gold, so if a user has previously purchased Zoiper Gold, they already have all the advanced features in this version.
ZoiPer offers a simple user interface and high-quality audio for a smooth VoIP experience. It is available for both SIP and IAX systems, making it suitable for end users, service providers, call centers, and businesses looking to benefit from VoIP communications. The application can also be customized with a company's logo and branding, or users can build their own solution using the VoIP SDK.
One of ZoiPer's key features is its low battery usage and high reliability and stability. It also has the lowest latency of all android softphones and provides excellent audio quality, even on older devices. The application supports calling over 3G and WiFi, and is compatible with all RFC compliant PBXs. It also has background and multitasking support, integration with the native android contact list, and features such as speakerphone mute and hold.
ZoiPer supports various codecs, including g711, speex, iLBC, and gsm, and allows for sending of DTMF. It also has built-in echo cancellation, STUN support, and the ability to change ringtones per account. Other features include call waiting, video support, ZRTP/TLS support, call transfer, and wideband audio.
However, it is important to note that ZoiPer may not work well on certain devices with broken audio implementations, such as the Alcatel one touch series and HTC one m8. Additionally, using ZoiPer as a default dialer may interfere with dialing emergency services.
To ensure the safety of its users, ZoiPer recommends only downloading the application from the official appstore, as there have been reports of fraudulent .apk files containing a trojan that can steal usernames and passwords. The official ZoiPer from Google Play is deemed safe to use.