CallBlue

CallBlue是一款功能豐富的移動VoIP應用程序，用於遠距離傳輸

CallBlue is feature-rich mobile VoIP application for making long distance or international calls at low rates. It is an interesting find for end users who have their friends and families scattered all around the world. The mobile application is available on the widely popular ANDROID. So, end users can easily download the application on their favorite device and use VoIP services to get started.

App Highlights:

Processes calls even in low bandwidths

In-built noise and echo cancellation

G729, PCMU, PCMA codec compatibility

SIP softswitch compatibility

Address book integration

NAT traversal on Private IP

SIP Signaling

Download CallBlue now to make VoIP calls to your near & dear ones.