I need a SIP dialer application for iOS and Android with the following features.
- Can use any opensource SIP SDK for developement (Linphone can be used as open source)
- Support for G729, SILK, and G711u
- Should work with any standard SIP Soft Switch (Asterisk)
- Soft Switch's IP Address should be embedded in the Code.
- User should be prompted to give in Username and Password Only.
- Should support TLS/SRTP
- I need the dialer to work with A2Billing.
- Account Balance and Calling destination should be displayed on the screen upon dialing the number.
- Should have the functionality of working in blocked regions.
20 freelancers are bidding on average $2324 for this job
Dear Client, I've read your project description. I can start working immediately after you hired me. Looking forward to your reply to discuss the further details. Best regards.