Voip Sip Symbion, Windows Mobile

We are looking for a Voip Dialer Software for Mobile Phones of Symbian and Windows Mobile OS as detailed under :- 1) User friendly interface 2) Mobile Dialer supports SIP for signalling. 3) Mobile Dialer supports G729, G723.1 and G.711 codec for sending audio stream 4) Mobile Dialer can run behind NAT or on private IP with VPN Tunneling embedded 5) This software will run on the phone having Symbian or Windows Mobile 5 and 6 having internet via GPRS/EDGE/Wi-Fi/ 3G ... 6) Mobile Dialer is fully customizable. 7) Able to use Mobile Dialer with any kind of Soft switch which support SIP 8) DiD calls can be received 9) Balance Exapmle - i test your mobile dialer realy good just need to add some more functions and remove gtalk, msn, icq just needed jabber Methods: Register/Unregister:: Registers with a voip Gatekeeper/ Softswitch by VPN Tunnel Service, Call: (Sends an Invite) Request to Establish a call with another SIP phone. or requests this to the sip server. Using codecs G723.1 and G729, (G711 and GSM Optional) SendDTMF Sends DTMF via RFC2833 or inband Hold/Unhold Sends Hold/unhold command AnswerCall Accepts and invite, and establishes a call. RejectCall Rejects and invite Transfer requests to refer the call to another sip address. PlayWavFile Plays a wav file to a remote user StopWavfile Stop the file being played EVENTS InviteIncoming A call is coming in, someone invites us via SIP InviteAnswered An invite made by me has been accepted Inviteringing My outgoing call is ringing the remote party DTMFReceived a DTMF has been received RegisterSuccess Server accepted our registration RemoteHold/unhold Server accepted our hold/unhold command ReceivesSound We are detecting a stream of sound coming through the line. PROPERTIES ListOfcalls with Redialing List of all currently open calls, each call must be an object wich handles/has all calls details. =================================================