USAP Dialer app for iPhone and iPad

4.2 ( 7552 ratings )

Social Networking
Developer: Shibu Vanuopadam

Free

Current version: 1.1, last update: 6 years ago
First release : 19 Dec 2016
App size: 29.69 Mb

USAP is a free mobile application for USAP customers to make and receive VoIP calls.
Application comes with following features.

Make and receive VoIP Calls
DTMF Support
G729 Support
SIP Protocol Support
Make calls to GSM phone numbers and SIP Phones
Free APP to APP VoIP Calling