SIP Mobile Dialer (iPhone, Android, Symbian) with VPN Tunnel

We are looking for a mobile dialer(Full source code) SIP or H323 (SIP is preffered) which can run on

1) User friendly interface

2) Mobile Dialer should support SIP/H323 for signalling.

3) Mobile Dialer supports G729, G723.1 and [url removed, login to view] 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 and allother available OS and Phone models.

6) Mobile Dialer should be fully customizable.

7) Able to use Mobile Dialer with any kind of Softswitch,Voip Billing Platform which support SIP/H323.

The dialer must be runing from the application layer. The most important part is to add G729 and G723.1 codec in it.

Second important part of this project is to add tunneling feature so call can placed even where VOIP protocol (SIP/H323) is blocked.

Example of Mobile SIP Clients === MobileVoip, Siphone, Rynga, Fring sip clients and SKYPE.

If network is not present and user wants to use voip calls from provider then application will automatically dial access number of provider through GSM network to connect provider calling card or callback system.

Control panel to set operator code with following options,

Sip proxy

Codec Selection

Header/footer message

Balance URL

Support contact information

Apart from that we are also looking out for a Soft Dialer or a webdialer like SKYPE.


• Connection over Wifi / 3G / Local Access or Calling Card access number

• Language support - customizable

• Native Contact Phonebook

• Dial, Hang up, Redial

• Call Hold

• Call Mute

• Call Forwarding

• Call Waiting

• Speaker Phone

• Keypad Display

• Call History: All, Recent, Dialed, Missed

• DTMF: Inband / Outband / SIP INFO

• Account Setup

• Brandable Client (changing some images) like themes

• Codec Support G729, AMR

• IVR number setting

• Provider can set IVR extension .

• Access number, if network not present

• Encryption Integrated

• Encryption supported for all blocked region

• Work with all standard SIP servers

• Supports all standard SIP supported switches based on RFC3261

• Remote end Dialer setting Panel

Skills: .NET, Assembly, C# Programming, C++ Programming

See more: symbian vpn client android, windows phone programming language, windows mobile 5.5, wifi calling android, which operator is this mobile number, vpn programming, vpn on android, vpn for android, vpn client for android, themes for android, standard forwarding, skype programming language, skype on android, skype for android phone, run windows on android, run android on windows, run android on iphone, remote control programming, proxy for android, programming remote control, programming operator, programming models, programming language history, programming for android os, private internet access android

About the Employer:
( 0 reviews ) Marthandam, India

Project ID: #6366767

3 freelancers are bidding on average $3296 for this job


We can handle this project. Kindly contact me and lets discuss more on the requirements for this project.

$5000 USD in 60 days
(5 Reviews)

Our company is Singapore based MNC [url removed, login to view] have good experienced and skilled staff for ASP.NET MVC, Microsoft SQL Server Programming,Web Designing,javascript,jQuery,HTML [url removed, login to view] have more than 10 year experienced in More

$555 USD in 10 days
(0 Reviews)

i am looking for your positive response as u know we r young minds who r always ready to take . we have completed several projects and we delivered them on time but as u know we are new in this market so we want More

$4333 USD in 45 days
(0 Reviews)