Recently Improlabs released a free version of Optima Dialer for users who doesn't need the commercial and branding related features. You can use it for free. If you have own softswitch or have an account with third party calling service and don’t face any SIP blockage, you can easily use Optima Free Dialer. Download it from the play store, configure it using your switch ip, user name & password and start using it. You don’t have to pay a single penny.

This free Mobile VoIP Softphone runs not only on both ARM and X86 architectures but also in a wide range of mobile handsets. Optima Free Dialer uses SIP signaling protocol and is compatible with all the major SIP supported softswitches.

Key Features:

★ Crystal clear voice.
★ Easy to configure and use.
★ Configurable with any SIP softswitch.
★ Integrated with native contact list.
★ Ability to work from behind NAT.
★ Upto 50 call history.

You Can Use Optima Free Dialer With..

★ Standard IPTSP Service
★ Calling Card Service
★ IP PBX System

Visit download page to install Optima Free Dialer in your mobile device.