A Soft Phone application based on internet can call any PSTN phone number around the world. You do not need register any phone number from a mobile operator, whenever there is internet connection, you can call any PSTN telephone number.
Also you can customerize your phone to any caller ID, it will be the caller ID shows on the receiver side.
Explanation: SIP is internet based softphone protocol, PSTN is the tradtional telephone based on operators circuit switch network, this softphone application can connect SIP to PSTN.
-- No need for telephone registration
-- Change your caller ID (be showed as calling phone number by receiver)
-- Extreme cheap international calls to mobile and fixed telephone
-- Direct call over 200 countries;
-- Good voice quality;
-- Call with WIFI based internet
-- Call with 3G/4G based internet
Sample price:
India: $0.015/min
China: $0.0159/min
United States: $0.0075/min
US/Canada Toll-Free: $0.001/min
Saudi Arabia: $0.2/min
Kuwait: $0.06831/min
Please contact wangwangjason76@gmail.com for any usage or recharging issues.