TANGO PLUS SIP CALL

Tangplus is a Mobile VoIP dialer application that allows to make VoIP calls from any of the Android devices and it uses 3G/Edge/Wi-Fi Internet connectivity.It is developed based on the requirements of VoIP Providers business needs
Features :-
It uses SIP protocol based for signaling.
Supports G729,PCMU, PCMA codecs.
Runs Behind NAT or private IP.
User Friendly Interface.
Auto Sync of Balance.
Real Time Sip status messages.
Call History.
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.
Integrates with mobiles phonebook and auto detects (+) sign when contact is picked from phonebook.

◆ FREE CALLS AND MESSAGING: In videochat facetime , everything is free.
◆ INTERNET CONNECTION: 3G calling or Wi-Fi For wifi calling when technology over 3G, 4G, LTE and WiFi without increasing data consumption.
◆ FILE TRANSFER: Share photos or files to your contacts.
◆ PRIVATE / GROUP CHAT: Enjoy private and group conversations with your contacts.
◆ MOMENTS SHARING. Record your moments ideas,feeling.
◆ FACEBOOK REGISTRATION: Use simple Facebook registration to fill in your profile and register account.
◆ SHARING WITH OTHER SOCIAL INSTANT MESSENGERS. Easy to share your creations, voice/video/text messages to other social messengers.
◆ CONTACTS IMPORT: Free Secure video calls will automatically connect you with your phone and Facebook contacts, who already use video calling free. So there is no need to add your friends manually.
◆ OFFLINE CALLS AND MESSAGES: Push notifications will inform you about missed chat messages and calls even, if you are offline. Don't worry, video calling free will retrieve chat history during the next application use.
◆ IM MESSAGES STATUSES: Send, read, now typing.
◆ LESS CALLS DROPPED: This video technology automatically detects and adjusts for connection speed, which means less dropped calls on the same connection than other video chat apps