HOLIDAYCALL is a commonly used mobile dialer application with minimum IOS version support 8 on apple iPhone, iPad, iPod and it uses the 3G/Edge/Wi-Fi internet connectivity. HOLIDAYCALL is developed based on the requirements of VOIP providers business needs Main features: HOLIDAYCALL uses SIP protocol based for signaling HOLIDAYCALL supports all codecs HOLIDAYCALL runs behind NAT or private IP User friendly interface Auto sync of balances 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 How to Activate: open the application, please put username on the column corresponds to username and then put password on the corresponding column below, then press register. the balance will be appeared on the top right and you can make calls to any country using country code before the number