I would like to have a Mobile Voip App that would be compatible with all the mobile operating systems like Nokia, IPhone, Windows Mobile and Blackberry. The below features & specification has to be included :
- Dialer for phone sets from Nokia with Symbian OS of S60 2nd & 3rd Edition, Blackberry, IPhone (IOS), Windows 7 (mobile), Android and Facebook app.
- Supports SIP for signaling.
- Supports G729 and G.711 (ulaw) Codec.
- Can run behind NAT / private IP.
- A tunneling system thru which the dialer can work in areas where SIP ports are blocked.
- Able to use the dialer with any kind of Soft switch which support SIP such as Asterisk, VoipSwitch and etc.
- Can support two stage billing so call timer will start from Invite Ring 200 OK
- Supports GPRS, WiFi,3G network and Bluetooth for internet connectivity.
- SIP protocol support
- Unlimited user license
- Customized with company logo/name
- Making and receiving calls
- Call timer
- Calling in background
- Display Balance
- Display Call history
- Display Credit Time
- Use of existing Phone address book
- Touch Tone
- Silence Suppression
- Echo Cancellation
- Registration Timeout
- Local signaling (Dial tone, busy, ring back, etc.)
- Redial
- Speaker
- Mute
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