We need a branded Android and Iphone sip Softphone.
This softphone must be already used and tested in production.
• Sip protocol ( IAX optional)
• Keep awake feature –receiving calls in background mode.
• Address Book , access phone address book
• Contacts integration
• Recent calls log.
• History of SMS sent
• Dial from History , last calls and Dialer
• Call hold, redial, mute, loudspeaker, call recording
• Codex selection, imclude:[url removed, login to view], [url removed, login to view](alaw & ulaw) , [url removed, login to view], GSM
• DTMF support
• Echo cancelation
• Add/Remove prefix for address book numbers
• Balance information
• Destination rate information
• Sign up (to our web site)
• Buy Credit
• Support Iphone 3Gs, 4, 4s
Optional Features :
• Geo presence
• Voice conference
• NAT & STUN configuration
• Call back client for triggering
• Support software updates.