Android VoIP and PTT application

Our company is looking for an expert Android programmer with high skills in Voice over IP.

The application that we want to create must provide Voice over IP communications in two modes: like a regular telephone call and in Push to Talk mode (PTT).

Applications requirements are:

• Must work with Android versions 2.3, 3 and 4, this include phones and tablets with screen sizes between 7” and 10”.

• Voice over IP and PTT must complain the SIP standard

• The service will include a server side for authentication. All the voice packages between terminals must pass through the server. Server side solution is not the purpose of this work, but suggestions are accepted.

• Conversations must be possible between GPRS, UMTS, HSDPA, WIFI, so adaptive codecs must be used.

• Voice packages must me encrypted.

• Screen design must be included.

• Source code shall be delivered.

The server side of the project is being developed using Open Source IMS.

Your bid must include:

• How long it will take.

• References for similar works.

Evner: Android, Mobile App Development

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Om arbejdsgiveren:
( 0 bedømmelser ) Spain

Projekt ID: #1590231

8 freelancere byder i gennemsnit €3750 på dette job


Good Evening! My name is Eric Mitchell and I'm quite intrigued by your Android VoIP app project as we have built a variety of mobile apps in the past. After reading the description, I am confident we can develop an Flere

€4000 EUR in 60 dage
(1 bedømmelse)

We assure you a great output of this [login to view URL] check private message for more [login to view URL]

€4000 EUR in 35 dage
(9 bedømmelser)

We have a team of developers who specialize in Android, Mobile Phone etc. We can solve your project within the 4 weeks deadline.

€4500 EUR in 28 dage
(2 bedømmelser)

Please check your PMB

€3000 EUR in 30 dage
(0 bedømmelser)


€3000 EUR in 10 dage
(0 bedømmelser)

Hi, Please check PM for further details.I have worked on same as your work. Thanks & Regards.

€3000 EUR in 30 dage
(0 bedømmelser)

I am an expert in VOIP and mobile, please see private message.

€3000 EUR in 14 dage
(0 bedømmelser)

We are voip experts.

€5000 EUR in 60 dage
(0 bedømmelser)

Dear Sir, We are a small company with experienced programmers to develop apps in android and iphone . Kindly get in touch with us for discussion and for working together. regards, ipower(public Listed Company) Flere

€4500 EUR in 45 dage
(0 bedømmelser)