I will build your own branding voip sip android softphone

Own Branding VoIP/SIP Softphone !!!

I will build softphone with your own branding logo and name for android platform.

This is an open source voice/video over IP (VoIP) phone that makes it possible to communicate freely with people over the internet via voice, video and text messaging.

Since it follows open standards from the telecommunications industry (SIP, RTP), This softphone is interoperable with most PBXs and SIP servers, and can be used with any SIP VoIP operator.

Signaling features : 

• Digest and TLS client certificate authentication
• Multiple call management: hold, resume, transfer and more
• Multiple SIP proxy support: registrar, proxies, outbound proxies
• Presence using list subscription to presence server
• DTMF (telephone tones)
• Suitable for building a VoLTE-compatible client

Media features :

• HD audio calls with support for Opus codec
• HD video calls with support for H.264, H.265 and VP8 codecs  
• State-of-the-art adaptive jitter buffer algorithm
• Innovative adaptive bitrate control
• ICE support for optimized NAT traversal
• SRTP and ZRTP media encryption
• Audio and video call recording

Instant Messaging features :

• One-to-one instant messages