OTG was keen to provide this App enabling the user to use it over WiFi, 2G, 3G and LTE.
To get ready to use this App, all what you need is to download our call44 App and visit our website " www.call44.com " to register and obtain the user name and password to LOGIN and start using the World high class VoIP service.
•*Ability to Make and Receive Calls
•* Caller ID
•* Call hold
•* Music on hold
•* Ability to View Contact List from Phone
•* Call forwarding
•* Call waiting