We need a voip mobile dialer like itel dialer, mosip dialer and other popular dialer \esign that has about 5 screens. (Messages; Recent; Contacts; keypad; About; Settings Invite to Use; Privacy).
The app should integrate with the all softswitch like voipswitch, VOS, MTVS, Sippy and all other I. The main functions of the app will include:
1. Making & Receiving VoIP Calls Over 3G, WiFi, GPRS
2. Should not kill the battery of the mobile device
3. Address Book Integration with local Phone Address Book AND the platform
4. User Credentials Save / Change Username & Password
5. Volume Control
6. Protocol SIP (RFC 3261)
7. Media Support RTP (Real Time Transport Protocol) & RTCP (RTP Control Protocol)
8. Transport Mode TCP, User Datagram Protocol (UDP), TCP to UDP Interworking
9. Codecs [url removed, login to view], [url removed, login to view], AMR (Adaptive Multi-Rate Compression), iLBC, [url removed, login to view], GSM.
10. Network Address Translation (NAT) Traversal Through Encryption & STUN
11. Voice Quality Silence Suppression, Packets Loss Management
12. DTMF - (Dual Tone Multifrequency) Generation & Detection (RFC 2833)
13. Call Status Indicator Displayed on phone screen
14. Call History, Call Detail Records, Current Account Balance, Current Account Balance, Current Account Minutes Remaining
16. SMS (through the platform)
17. App will be in English, but should allow for multiple language support by design
18. App should voice and SMS encryption
19. App should work in SIP block countries like UAE, Oman and KSA. These countries not allowed voip sip calls.
7 freelance ont fait une offre moyenne de 2329 $ pour ce travail
Hey, This bid has been placed to secure our place between several [url removed, login to view] we receive SOW/SRS,we can then adjust proposal amount and time accordingly. We are interested in working for your [url removed, login to view] have deve Plus