Hi,We are looking for Talented Mobile application developer for SIP Mobile Dialer software for androidWe are looking for custom Mobile dialer tools for VOIP usage (on Session Initiation Protocol (SIP))We need own logo +design on software.Platform we need:Android is primary on this stage. so bid only for Androidafter we need on Nokia and Blackberry and iPhone OS (suggest this costing also if you are capable)Supported Codecs : g729, AMR, GSM and g711.This dialer have following features: • Integration with mobile phonebook- For VoIP calling, it integrates with mobile phonebook directly. • Balance information- Your clients can check their account balance on mobile phone screen or alternatively, they can hear account balance through IVR (interactive voice response). • User enter SIP proxy , id and password first in setting option ( we tell you 2 SIP proxy predefine so user can type our SIP address only) • Dialer Main menu to dial to party using mobile internet (same in other software) • Auto call system :: Turn on /OFF (by default off) If user turn on the all incoming call on there phone should be discounted automatically in 2 rings and this software copy the source number with country code and software automatically call from this Dialer (VOIP) so you need to make this application always run in hidden mode to monitor this feature. • buy now option (our website open to buy-URL open function) • Free call system like if anyone use this software in more mobiles like family or friends so the calls will be free using this software without using any VOIP system , its like a IM call . • Free SMS to another user who have installed this same applicationThe software should be lightweight and work on supports 3G/4G, GPRS and Wi-Fi for internet connectivity. all with less bandwidth with super clear sound ….Example of SIP based Voip dialers are: Fring, SIPdroid, etcYou can take help from this site for SDK for Voip dialer :www.unicoi.com/instavoip/mobile.htmWe need Source code also for review also.Note: Don't Bid if you have less than 5 reviews , our interest on Romania based programmers.