ISDFone

ISDFone Inc

ISDFone Mobile Dialer is a Free mobile application for making international VoIP calls. It works based on SIP protocol and requires data service of Edge/GPRS/3G/4G or Wi-Fi data connection.

Features:

- Crystal clear, Stereo HD voice quality.

- Call from Android phone native Contacts.

- Call history information.

- Automatic Call timer and credit balance display.

- Loud Speaker and Mute Microphone options during active call.

- Works with 2G / 3G / 4G, Edge or UMTS and Wi-fi Network.

- Works In Low bandwidth and Low Data Consumption.

- Smart echo cancellation technique.