Caricel App
Looks like Caricel has an app on the IOS Appstore. VOIP dialer, most likely business targeted.
http://caricel.appstor.io/
Caricel is a mobile dialer or application which makes VoIP calls with minimum iOS version support of 6.0 on Apple iPhone, iPad and it uses the 3G/Edge/wifi Internet connectivity.
Caricel is developed based on the requirements of VoIP Providers business needs.
Features :-
Caricel uses SIP protocol based for signaling.
Caricel Supports all codecs.
Caricel run Behind NAT or private IP.
User Friendly Interface.
Auto Sync of Balance.
Real Time Sip status messages.
Call History.
Loud Speaker.
Hold.
Address book integration.
Compatible with all sip standard switches.
It has very efficient implementation of jitter buffer to play voice smoothly.
Silent suppression and comfort noise generation has been used to reduce the bandwidth usage, and this makes the dialer more efficient in making VoIP calls.
HP Notebook - 15-af131dx
AMD Quad-Core A6-5200 APU 2 GHz with Radeon HD 8400 Graphics,8 GB RAM